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| Step Down Switching Regulator | ||||||
| NON-SYNCHRONOUS | ||||||
| Part No. | Features | VIN(Range)(V) | VFB(V) | IQ(mA) | ISTBY(uA) | Package |
| IOUT(A) | η(％) | |||||
| P2520* | 2.0A 340kHz, 20V Step Down Converter | 7.0V~20V | 1.293V | 700uA | 8uA | HSOP-8 |
| 2.0A | Up to 95% | |||||
| P3586 |
3.0A 1.2MHz , PWM Step-down Switching Regulator * 10μA Shutdown Supply Current * Frequency fold back at Short Circuit * Protection Circuits: UVLO, Thermal Shutdown, OCP *Low ESR Output Capacitor Application. |
3.6V~20V | 0.8V | 3.0mA | 10uA | SOP-8 |
| 3.0A | Up to 92% | |||||
| P1596 |
1.5A 150KHz, PWM Step-down Switching Regulator * Voltage mode non-synchronous PWM control * Thermal-shutdown and current-limit protection * Low power standby mode * Internal current and thermal limit * Built-in switching transistor on chip |
4.5V~22V |
1.23V(Adj) 2.5V,3.3V, 5.0V,12.0V(Fixed) |
5.0mA | 70uA |
TO-220B TO-220-5 TO-263-5 HSOP-8 |
| 1.5A | Up to 90% | |||||
| P1785 |
2.0A 300KHz, PWM Step-down Switching Regulator with Internal OCSET * Soft-start, Current Limit, Enable function * Thermal Shutdown function * Built-in internal SW P-channel MOS * Duty ratio: 0% to 100% PWM control |
3.6V~23V | 0.8V | - | 10uA | SOP-8 |
| 2.0A | Up to 95% | |||||
| P1885 |
2.0A 300KHz, PWM Step-down Switching Regulator * Soft-start, Current Limit, Enable function * Thermal Shutdown function * Built-in internal SW P-channel MOS * Duty ratio: 0% to 100% PWM control |
3.6V~23V | 0.8V | - | 10uA | SOP-8 |
| 2.0A | Up to 95% | |||||
| P1786 |
3,0A 300KHz, PWM Step-down Switching Regulator with external OCSET * Duty ratio: 0% to 100% PWM control * Soft-start, current limit, enable function * Thermal shutdown function * Built-in internal SW P-channel MOS |
4.0V~23V | 0.8V | - | 10uA | SOP-8 |
| 3.0A | Up to 95% | |||||
| P1886 |
3,0A 300KHz, PWM Step-down Switching Regulator Internal Frequency Compensation With Fewer Component Count * Soft-start, Current Limit, Enable function * Thermal Shutdown function * Built-in internal SW P-channel MOS * Duty ratio: 0% to 100% PWM control |
4.0V~23V | 0.8V | - | 10uA | SOP-8 HSOP-8 |
| 3.0A | Up to 95% | |||||
| P1888 |
3,0A 300KHz, PWM Step-down Switching Regulator * Soft-start, Current Limit, Enable function * Thermal Shutdown function * Built-in internal SW P-channel MOS * Duty ratio: 0% to 100% PWM control |
4.0V~23V | 1.28V | - | 10uA | SOP-8 |
| 3.0A | Up to 88% | |||||
| UD21401 | - | - | - | - | - | MSOP-8 |
| - | ||||||
| UD24121 |
1.4MHz, 1.2A STEP-DOWN CONVERTER * 0.35Ω Internal Power MOSFET Switch * Stable with Low ESR Output Ceramic Capacitors * Up to 92% Efficiency * 0.1μA Shutdown Mode * Thermal Shutdown * Cycle-by-Cycle Over Current Protection |
4.5V~24V | Up to 92% | 0.8mA | 3uA | SOT-26 |
| 1.2A | ||||||
| P1595 |
1.5A 200KHz, PWM Step-down Switching Regulator * Output Voltage In Adjustable Output Version. * Short Circuit Protect * On/Off Shutdown Control Input. * Voltage Mode Non-Synchronous Pulse Width Modulation (PWM) Control. |
4.5V~24V | 0.75V | 4.0mA | 2uA | SOT-89-5 |
| 1.5A | Up to 85% | |||||
| P1696 |
2.0A 200KHz, PWM Step-down Switching Regulator *Low power standby mode *Internal OCP and OTP |
4.5V~24V |
1.23V(Adj) 2.5V,3.3V, 5.0V,12.0V(Fixed) |
5.0mA | 80uA | SOP-8 HSOP-8 |
| 2.0A | Up to 90% | |||||
| P1583 |
2.5A 380KHz, PWM Step-down Switching Regulator * Frequency foldback at short circuit * Thermal shutdown * Under voltage lock output * Current mode with low ESR output ceramic capacitors * Up to 90% efficiency |
4.0V~24V | 1.222V | 2mA | 36uA | HSOP-8 |
| 2.5A | Up to 90% | |||||
| P1586* | 1.5A 1.25MHz, PWM Step-down Switching Regulator | 3.0V~25V | 1.2V | 1.0mA | 6uA | HSOP-8 MSOP-8 |
| 1.5A | Up to 90% | |||||
| P1593* | 1.0A 200KHz, PWM Step-down Switching Regulator with Soft start | 4.5V~26V | 0.75V | 3.5mA | 2uA | SOT-25 SOP-8 |
| 1.2A | Up to 85% | |||||
| P4590* | 4.0A 380kHz, Asynchronous Step-Down Converter | 4.5V~26V | Up to 91% | 2.0mA | 5uA | HSOP-8 |
| 4.0A | ||||||
| P1580 |
2.5A 380KHz, PWM Step-down Switching Regulator * Frequency Feedback at Short Circuit * Thermal Shutdown * Under Voltage Lock Output * Current Mode With Low ESR Output Ceramic Capacitors * Up to 90% Efficiency |
3.5V~28V | 1.222V | 1.7mA | 5uA | HSOP-8 |
| 2.5A | Up to 90% | |||||
| P1986 |
3.0A 330KHz, PWM Step-down Switching Regulator Built-In Soft Start With Fewer Component Count * Duty ratio varies from 0% to 100% PWM control * Built-in switch P-channel power MOS * Halogen Free |
3.6V~28V | 0.8V | 3.0mA | 2uA | SOP-8 |
| 3.0A | Up to 95% | |||||
| P2583 |
3.0A 380KHz, PWM Step-down Switching Regulator * Frequency FoldBack at Short Circuit * Thermal Shutdown * Under Voltage Lock Output * Current Mode with Low ESR Output Ceramic Capacitors * Up to 90% Efficiency |
3.6V~28V | 1.222V | 2.2mA | 20uA | SOP-8 |
| 3.0A | Up to 90% | |||||
| UC34363 |
2.0A 75KHz, PWM Switching Regulator * CV/CC linear charge * PWM control Mode * Available charge current * Over Voltage protect ,Over Current Protect * Enable Control function * Very Low Power Dissipation in Standby Mode |
8.0V to 30V | 3.0V | - | 7mA | SOP-8 |
| 3.0A | Up to 90% | |||||
| LD4040* | 4.0A 300KHz, 32V Buck DC to DC Converter | 3.6V~32V | 0.8V | 5.0mA | 200uA | TO-252-5 |
| 4.0A | Up to 90% | |||||
| P3596 |
3.0A 150KHz, PWM Step-down Switching Regulator *Low power standby mode *High efficiency *Internal current and thermal limit |
4.5V~35V |
1.23V(Adj) 2.5V,3.3V, 5.0V,12.0V(Fixed) |
5.0mA | 80uA |
TO-220-5 TO-220B TO-263-5 |
| 3.0A | Up to 85% | |||||
| UD36061 |
2MHz, 0.6A STEP-DOWN CONVERTER * > 90% Efficiency * Internally Compensated * Internal Soft-Start * Precision Current Limit Without Current Sensing Resistor * 3μA Low Shutdown Supply Current |
3.6V~36V | Up to 90% | 0.13mA | 3uA | SOT-26 |
| 0.6A | ||||||
| UC34463 |
2.0A 200KHz, PWM Buck Switching Regulator * Voltage mode non-synchronous PWM control * Thermal-shutdown and current-limit protection * ON/OFF shutdown control input * Low power standby mode * Built-in switching transistor on chip |
Up to 40V | 5.0V | 5.0mA | 70uA | SOP-8 HSOP-8 |
| 2.0A | Up to 85% | |||||
| P3576 |
2.0A 50KHz, PWM Step-down Switching Regulator * Low power standby mode * Internal current and thermal limit * Built-in Switching Transistor On Chip. |
4.5V~40V |
1.23V(Adj) 1.5V,3.3V, 5.0V,12V(Fixed) |
4.0mA | 100uA | SOP-8 |
| 2.0A | Up to 90% | |||||
| LD1596 |
2.0A 150kHz, 40V Buck DC/DC Converter With Constant Current Loop * Minimum Drop Out 1.5V * Internal Optimize Power Transistor * Excellent line and load regulation * TTL shutdown capability * ON/OFF pin with hysteresis function |
4.5V~40V | 1.235V | 5.0mA | 200uA | SOP-8 HSOP-8 |
| 2.0A | Up to 83% | |||||
| P2576 |
3.0A 52KHz, PWM Step-down Switching Regulator * Requires 4 External Components * TTL Shutdown * Low Power Standby Mode * Thermal Shutdown, * Current Limit Protection |
7.0V~40V |
1.23V(Adj) 5.0V(Fixed) |
5.0mA | 50uA |
SOP-8 HSOP-8 TO-220B TO-220-5 TO-263-5 |
| 3.0A | Up to 85% | |||||
| UMC33167 |
5.0A 72kHz, STEP-UP/DOWN/INVERTING SWITCHING REGULATORS * Precision 2% Reference * 0% ~ 95% Output Duty Cycle * Cycle-by-Cycle Current Limiting * Undervoltage Lockout with Hysteresis * Internal Thermal Shutdown |
7.5V~40V | Up to 95% | - | 100uA | TO220-5 TO-220B |
| 5.0A | ||||||
| P4596 |
3.0A 200KHz, PWM Control Step-Down Converter * Duty ratio：0%~100% PWM control * Enable with Soft-Start function * Oscillation frequency can be set by outside resistance * Current Limit, SCP and OTP |
8.0V~40V | 0.815V | 3.0mA | 56uA | HSOP-8 |
| 3A | Up to 91% | |||||
| P34563 |
PWM CONTROL 3A STEP-DOWN CONVERTER * Oscillation frequency: 100KHz * Duty ratio: 0%~100% PWM control * Enable and auto restart function. * Short Circuit Protect (SCP). * Thermal Shutdown function / Internal OVP. * Built-in internal SW P-channel MOS. |
8.0V~40V | 1.10V(typ) | 7.0mA | 5uA | HSOP-8 |
| 3.0A | ||||||
| P1690 |
0.4A 150KHz, PWM Step-down Switching Regulator * High efficiency up to 85% * Maximum Duty Cycle 100% * Built in OTP、SCP、OCP |
5V~65V | 1.25V | 5mA | 200uA | SOP-8 |
| 0.4A | Up to 85% | |||||
| P2576HV* | - | - | - | - | - | - |
Step-Down DC-DC PWM or PFM Controller (Buck)
Part No.
Features
VIN(Range)(V)
VFB(V)
IQ(mA)
ISTBY(uA)
Package
IOUT(A)
η(％)
UC3666
1.6MHz, Dual Channel 1A High Efficiency Step-Down DC/DC Converter
* Current mode operation
* Fixed frequency operation
* Over-temperature protection circuit
* RoHS Compliant (100% green available)
2.5V~5.5V
90%
-
0.1uA
DFN3030-10
0.8A
UC3656
1.6MHz, 1.0A High Efficiency Step-Down DC/DC Converter
* Schottky Diode is Saved
* Internal ON/OFF
* 100% Duty Cycle Allows Low Dropout Operation
* Stand-by Current: 1μA (Max.)
2.5V~5.5V
90%
300uA
0.5uA
SOT-25
1.0A
UD05103
1.5MHz/1MHz, 1A HIGH-EFFICIENCY SYNCHRONOUS STEP-DOWN CONVERTER
* Shutdown Current < 1μA
* 100% Duty Cycle Operation
* Current Mode Operation
* Internal Soft-Start.
* Current Limit Protection
* Over-temperature Protection.
* Input Under Voltage Lockout (UVLO)
2.5V~5.5V
Up to 95%
600uA
1.0uA
SOT-25
1.0A
UC3657*
1.2MHz , 1.2A Synchronous Buck Converter
2.5V~5.5V
Up to 95%
300uA
0.5uA
TDFN-10(3x3) SOP-8 TSSOP-8
1.2A
UD05121
1.5MHz, 1.2A Synchronous Step-Down Regulator
* Up to 95% Efficiency
* Less than 1μA Shutdown Current
* Thermal Shutdown Protection
* Current limit and short circuit protections.
* Build-in soft start function
2.5V~5.5V
Up to 95%
350uA
1.0uA
SOT-25
1.2A
UD05122
1.4MHz, 1.2A, VFB=0.6V SYNCHRONOUS STEP-DOWN CONVERTER
* Output Voltage: from 0.6V to VIN
* Constant Frequency Operation:1.4MHz
* Quiescent Current: 200uA (input < 4.2V)
* No Schottky Diode Required
* 100% Duty Cycle in Dropout
* 0.6V Reference Allows Low Output Voltages
* Current Mode Operation for Excellent Line and Load Transient
Response
* Current limit, Enable function
* Short Circuit Protect (SCP)
* ≤1μA Shutdown Current
2.5V~5.5V
Up to 92%
200uA
1.0uA
SOT-25
1.2A
UD05151
1.5MHz, 1.5A HIGH-EFFICIENCY SYNCHRONOUS STEP-DOWN CONVERTER
* Shutdown Current < 1μA
* 100% Duty Cycle Operation
* Current Mode Operation
* Internal Soft-Start
* Current Limit Protection
* Over-temperature Protection
* Input Under Voltage Lockout (UVLO)
3.0V~5.5V
Up to 90%
80uA
1.0uA
SOT-25
1.5A
UD05158
1.5MHz, 1.5A LOW NIOSE SYNCHRONOUS STEP-DOWN CONVERTER
* Shutdown Current < 1μA
* 100% Duty Cycle Operation
* Current Mode Operation
* Internal Soft-Start.
* Current Limit Protection
* Over-temperature Protection.
* Input Under Voltage Lockout (UVLO)
2.7V~5.5V
Up to 95%
200uA
1.0uA
DFN2020-6
1.5A
UD05205
1.5MHz, 2A SYNCHRONOUS BUCK CONVERTER
* 150/120mΩ Internal Power MOSFET Switch
* Stable with Low ESR Output Ceramic Capacitors
* Up to 95% Efficiency
* Less than 1μA Shutdown Current
* Thermal Shutdown Protection
* Current limit and short circuit protections.
* Build-in soft start function
2.5V~5.5V
Up to 95%
350uA
1uA
SOT-25
2A
UD05201
1.2MHz, 2A SYNCHRONOUS STEP-DOWN CONVERTER
* High Efficiency: Up to 96%
* Low RDS(ON) Internal Switches: 0.15Ω
* Current limit, Enable function
* Short Circuit Protect (SCP)
* Build-in Soft Start function
* ≤ 1μA Shutdown Current
2.6V~5.5V
Up to 96%
400uA
1.0uA
SOT-8
2A
UD05202
1MHz, 2A SYNCHRONOUS STEP-DOWN CONVERTER
* Low RDS(ON) for internal switches (top/bottom) 180mΩ/120mΩ
* Internal soft-start limits the inrush current
* 100% dropout operation
3V~5.5V
-
80uA
10uA
HSOP-8
2A
UD05203
1MHz, 2A SYNCHRONOUS STEP DOWN REGULATOR
* Low RDS(ON) for internal switches (top/bottom) 130mΩ/100mΩ
* Internal softstart limits the inrush current
* 100% dropout operation
3V~5.5V
-
80uA
1uA
HSOP-8
2A
UD05206
1.5MHz, 2A SYNCHRONOUS STEP DOWN REGULATOR
* Shutdown Current < 1μA
* 100% Duty Cycle Operation
* Current Mode Operation
* Internal Soft-Start
* Current Limit Protection
* Over-temperature Protection
* Input Under Voltage Lockout (UVLO)
2.5V~5.5V
Up to 100%
128uA
1uA
HSOP-8
2A
UD05251
1.2MHz, 2.5A SYNCHRONOUS STEP DOWN REGULATOR
* High Efficiency: Up to 94%
* Current limit, Enable function
* Short Circuit Protect (SCP)
* Build-in Soft Start function
* ≤1μA Shutdown Current
2.6V~5.5V
Up to 94%
400uA
1uA
HSOP-8 DFN3030-8
2.5A
UC3658*
1MHz, 3.0A Synchronous Step-Down Regulator
3V~5.5V
Up to 95%
-
1.0uA
HSOP-8
3.0A
UD05302
1MHz, DUAL 3A SYNCHRONOUS STEP DOWN REGULATOR
* Low RDS(ON) for internal switches (top/bottom) 110mΩ/80mΩ
* Internal softstart limits the inrush current
* 100% dropout operation
3V~5.5V
-
80uA
10uA
HSOP-8
3.0A
UD05303
1MHz, 3A HIGH EFFICIENCY synchronous step-down DC-DC regulator
* Low RDS(ON) for internal switches (top/bottom) 100mΩ/70mΩ
* Internal softstart limits the inrush current
* 100% dropout operation
* Output power good indicator
* RoHS compliant and halogen free
3V~5.5V
-
-
-
HSOP-8
3.0A
UC3655-XX
1.3MHz 0.5A Synchronous Buck Converter
* Very High Efficiency 92%
* Low Ripple Rejection Voltage 10mV
* With PWM / PFM Automatic Switching Control
* Maximum Duty Ratio is 100%
* Ceramic Capacitor Available
2.0V~6.0V
90%
70uA
1.0uA
SOT-25
0.5A
UC3206
3MHz 0.6A Inductor Built-in Step-Down “micro DC/DC” Converters
* Maximum duty cycle: 100%
* High efficiency : 92% (TYP.)
* High speed soft-start circuit and Current limiter circuit built-in
* CL high speed auto discharge
* Low ESR ceramic capacitor compatible
2.0V~6.0V
85%
35uA
1.0uA
SOT-25
0.6A
UD05104
2.25MHz, 1A SYNCHRONOUS STEP-DOWN DC/DC CONVERTER
* 100% Duty Cycle Operation
* Internal Soft-Start
* Cycle-by-Cycle Current Limit Protection
* Over-Load and Hiccup Mode Short Circuit
* Thermal Shutdown Protection
2.5V~6.0V
-
40uA
1.5uA
SOT-25
1A
UD05104A
* +/-2% 0.6V Feedback Voltage Accuracy
* 1MHz Switching Frequency
* 100% Duty Cycle Operation
* Built-in 170mΩ/150mΩ Power Switch
* Cycle-by-Cycle Current Limit Protection
* with Soft-start, OTP, Over-Load and Hiccup Mode Short Circuit
2.5V~6.0V
-
40uA
1.5uA
SOT-25
1A
UCD0318*
500KHz, 3.0A Synchronous Rectified Step-Down Converter
4.5V~16V
Up to 95%
2000uA
1.0uA
HSOP-8
3.0A
USR1021
500KHz, 3.0A PWM Control Step-Down Converter
* Internal soft start
* 1.5% initial output accuracy
* Cycle-by-cycle current limit
* Thermal shutdown
* Short-circuit protection
4.5V~16V
Up to 95%
3500uA
3.0uA
SOP-8
3.0A
UD18204
500KHz, 2A SYNCHRONOUS RECTIFIED STEP-DOWN DC/DC CONVERTER
* High Efficiency up to 90%
* Power Saving Mode (PSM) during the light Load Operation
* Current Mode Operation
* Over-temperature Protection
* Over-current Protection
4.5V~18V
Up to 90%
-
-
SOT-26
2.0A
USR1051
400KHz, 3.0A PWM Control Step-Down Converter with Soft start
* Synchronous Buck
* Cycle-by-cycle current limit
* Pre-bias start-up
* Thermal shutdown
* Short-circuit protection
4.5V~18V
Up to 95%
1600uA
1.0uA
HSOP-8
3.0A
P1482
340KHz, 2.0A Synchronous Rectified Step-Down Converter
* Integrated Power MOSFET Switches
* Programmable Soft-Start
* Stable with Low ESR Ceramic Output Capacitors
* Cycle-by-Cycle Over Current Protection
6V~23V
Up to 93%
5000uA
-
SOP-8
2.0A
P1482A
340KHz, 2.0A Synchronous Rectified Step-Down Converter
* Integrated Power MOSFET Switches
* Programmable Soft-Start
* Stable with Low ESR Ceramic Output Capacitors
* Cycle-by-Cycle Over Current Protection
6V~23V
Up to 93%
5000uA
-
HSOP-8
2.0A
P1484
340KHz, 3.0A Synchronous Rectified Step-Down Converter
* Integrated Power MOSFET Switches
* Programmable Soft-Start
* Stable with Low ESR Ceramic Output Capacitors
* Cycle-by-Cycle Over Current Protection
6.0V~23V
Up to 93%
3500uA
-
SOP-8
3.0A
P1484A
340KHz, 3.0A Synchronous Rectified Step-Down Converter
* Integrated Power MOSFET Switches
* Programmable Soft-Start
* Stable with Low ESR Ceramic Output Capacitors
* Cycle-by-Cycle Over Current Protection
6.0V~23V
Up to 93%
3500uA
-
HSOP-8
3.0A
P2680
2.0A 340kHz, Step Down Converter
* Output Adjustable
* Frequency FoldBack at Short Circuit
* VIN Under-voltage Lockout
* Thermal Shutdown
* OCP
* Programmable Soft-Start
7.0V~26V
0.923V
900uA
8uA
HSOP-8
2.0A
Up to 95%
SR2803
330KHz, 3.0A Synchronous Buck Regulator.
* Duty ratio varies from 0% to 92% PWM control
* Thermal shutdown and SCP function and soft-start, current limit, enable function
* Low ESR output capacitor(Multi-layer chip capacitor) application
4.0V~28V
Up to 95%
3000uA
2.0uA
SOP-8
3.0A
UD36241
* CC/CV Mode Control
* Adjustable Load Line Compensation
* 200mΩ Internal Power MOSFET Switch
* Current Mode Control
* Fixed Frequency Operation : 100kHz
* Programmable Output Current Limit
* Lowe EMI signature
* Cycle-by-Cycle Over Current Protection
* Input Under Voltage Lockout
* with OTP
9V~36V
1V
4
3uA
HSOP-8
2.4A
-
UCC36351
160KHz, 3.5A SYNCHRONOUS BUCK CONVERTER WITH CC/CV
* Integrated 75/45mΩ Power MOSFET Switches
* Up to 93% Efficiency
* Stable with Low ESR Ceramic Output Capacitors
* Cycle-by-Cycle Over Current Protection
* Input Under/Over Voltage Lockout
8V~36V
Up to 93%
1.5mA
-
HSOP-8
3.5A
UCC36451
160KHz, 4.5A SYNCHRONOUS BUCK CONVERTER WITH 2CH CC/CV
* Integrated 75mΩ high side Power MOSFET Switches
* Up to 95% Efficiency
* Stable with Low ESR Ceramic Output Capacitors
* Cycle-by-Cycle Over Current Protection
* Input Under/Over Voltage Lockout
8V~36V
Up to 95%
2mA
-
HSOP-8
4.5A
UD38251
160KHz, 2.5A SYNCHRONOUS BUCK CONVERTER
* Integrated 140mΩ Power MOSFET Switches
* Up to 93% Efficiency
* Internal Soft-Start
* Cycle-by-Cycle Over Current Protection
* Input Under/Over Voltage Lockout
8V~38V
Up to 93%
1.5mA
1.3mA
HSOP-8
2.5A
UD38252
160KHz, 2.5A SYNCHRONOUS BUCK CONVERTER WITH CC/CV
* Integrated 140mΩ Power MOSFET Switches
* Up to 92% Efficiency
* Internal Soft-Start.
* Cycle-by-Cycle Over Current Protection
* Input Under/Over Voltage Lockout
8V~38V
Up to 92%
1.5mA
-
HSOP-8
2.5A
UD38501
160KHz, 5A SYNCHRONOUS BUCK CONVERTER
* Integrated 80mΩ high side Power MOSFET Switches
* Up to 95% Efficiency
* Internal Soft-Start
* Cycle-by-Cycle Over Current Protection
* Input Under/Over Voltage Lockout
8V~38V
Up to 95%
1.5mA
1.3mA
HSOP-8
5A
UCC40702
40V SYNCHRONOUS BUCK CONTROLLER WITH 2CH CC/CV
8V ~ 40V
Up to 95%
1.5mA
-
MSOP-10
Part No.
Features
VIN(Range)(V)
η(％)
IQ(uA)
ISTBY(uA)
Package
UC3750-XX
600kHz PWM /PFM Buck Controller
* Built-in soft-start (SS)
* Automatic PWM/PFM switchover under light load condition
* Internal under-voltage lockout (UVLO) protection
* Low profile and minimum external components
2.45V~5.5V
92%
50uA(Typ)
0.3uA
SOT-25
UC4601
500kHz PWM Step-down DC-DC Controller
* Internal soft-start and protection function
* High efficiency up to 90% (TYP.)
* Standly current: 0.1μA (TYP.)
* CMOS output capability
2.5~18V
90%
40uA(Typ)
1.0uA
SOT-25
M7085
1MHz PFM STEP-DOWN Controller
* High efficiency 90% and up is possible
* Low dropout operation：100% duty cycle
* Two methods of over-current protection
4.5V~35V
93%
300uA(Typ)
-
MSOP-8
USR1101
5V/12V Synchronous Buck PWM DC-DC Controller
* Drives all low cost N-channel MOSFETs
* PWM control mode
* Internal soft-start
* RoHS compliant and 100% lead (Pb)-free
5V±5%,12V±10%
88%
6mA(Typ)
-
SOP-8
