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Switching Regulators

Switching regulator DC–DC converter ICs are available in step-up/step-down/inversion type variations. These power supply components deliver highly efficient, precise output over a wide input voltage range.

Features:

  • Robust voltage conversion solution
  • Low drop-out rate
  • Small footprint
  • Overload and short-circuit protection
  • Reverse voltage protection
  • Various packages available

Applications:

  • Mobile devices
  • Vehicle Infotainment
  • TV’s
  • Gaming
DC-DC Converters

Part Number

Type

Power FET

Data Sheet

Control Method

Input Voltage
Range

Output Voltage

Output Voltage
Accuracy

Output Current

Package

MM3333

Step-up

Built-in

PWM/PFM

1.8~5.5V

2.5~4.5V

±2.4%

100mA

MM3472

Step-down

Built-in

PWM/PFM

2.0~5.5V

0.8~3.8V

±1.5%

600mA

MM3558

Step-down

Built-in

PWM

3~5.5V

1.0~VIN

±2.0%

1.5A

MM3370

Step-down

Built-in

PWM

7.0~27V

0.92~18V

±2.0%

3.0A

MM3542

Step-down

Built-in

PWM

4.5~20V

0.8~16V

±1.0%

2.0A

MM3543

Step-down

Built-in

PWM

4.5~20V

0.8~16V

±1.0%

3.0A

MM3631

Inverting

Charge pump

1.8~3.3V

-VIN

500mA

DC-DC Converter for USB

Part Number

Type

Power FET

Data Sheet

Control Method

Input Voltage Range

Output Voltage

Output Voltage Accuracy

Output Current

Package

MM3630BV

Step-down

Built-in

PWM

4.5~3.3V

3~7V

±1.5%

2.5A

MM3630BR

Step-down

Built-in

PWM

4.5~3.3V

3~7V

±1.5%

1.5A

AC-DC Converters

Part Number

Functions

Data Sheet

Topology

Input Voltage
Range

Drive Voltage

Switching
Frequency

Package

MM3663

[Primary-side]
PWM controller

Flyback PWM

10~24V

30V (Startup-pin 500V)

66kHz/100kHz

MM3661

[Primary-side]
QR controller

Flyback QR

10~24V

30V (Startup-pin 500V)

25~75kHz

MM3667

[Secondary-side]
Synchronous Rectifier

Flyback QR
Half-bridge LLC

6~15V

17V (Usable >17V with a diode)

25~200kHz(QR)
25~500kHz(LLC)

MM3669AF

[Secondary-side]
Synchronous Rectifier

Half-bridge LLC

7.5~15V

17V (Usable >17V with a diode)

500kHz