Regulator

LM2937IMPX-3.3 Datasheet PDF – 500mA, Voltage Regulator

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Part Number: LM2937IMPX-3.3

Function: 400mA and 500mA Voltage Regulator

Package: SOT-223 Type

Manufacturer: National ( Texas Instruments )

Pinouts:

LM2937IMPX-3.3 datasheet

 

Description

The LM2937-2.5 and LM2937-3.3, LM2937IMPX-3.3 are positive voltage regulators capable of supplying up to 500 mA of load current. Both regulators are ideal for converting a common 5V logic
supply, or higher input supply voltage, to the lower 2.5V and 3.3V supplies to power VLSI ASIC’s and microcontrollers. Special circuitry has been incorporated to minimize the quiescent current to typically only 10 mA with a full 500 mA load current when the input to output voltage differential is greater than 5V.

 

Features

1. Fully Specified for Operation Over -40°C to +125°C

2. Output Current in Excess of 500 mA (400mA for SOT-223 package)

3. Output Trimmed for 5% Tolerance Under All Operating Conditions

4. Wide Output Capacitor ESR Range, 0.01Ω up to 5Ω

5. Internal Short Circuit and Thermal Overload Protection

6. Reverse Battery Protection

7. 60V Input Transient Protection

8. Mirror Image Insertion Protection

 

LM2937IMPX-3.3 Datasheet PDF Download

LM2937IMPX-3.3 pdf


 

Other data sheets are available within the file:

LM2937ES-2.5, LM2937ES-2.5/NOPB, LM2937ES-3.3, LM2937ES-3.3/NOPB, LM2937ESX-2.5

M51977FP Datasheet PDF – Switching Regulator Control

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Part Number: M51977FP

Function: Switching Regulator Control, PWM Controller

Package: SOP 20 Pin Type

Manufacturer: MITSUBISHI ELECTRIC

Image and Pinouts:
M51977FP datasheet

Description

Mitsubishi IC type M51977P, M51977FP are the off-line primary PWM controller which are especially designed for SMPS to get the regulated DC voltage from AC power supply. As the totempole type high power-driver-circuit is integrated in these IC. these IC can drive the MOSFET with fast rise and fast fall ouput pulse.

Block Diagram

components

Features

1. 500 kHz operation of MOSFET

2. Compact and light-weight power supply

3. High-performance and highly functional power supply

4. Fast rise time of 60ns and fast fall time of 40ns

5. Over-voltage protection circuit ( OVP )

6. Triangular wave oscillator for easy dead time setting

Applications:

1. Feed forward regulator, Fly back regulator

Other data sheets are available within the file: M51977, M51977P

M51977FP Datasheet PDF Download


M51977FP pdf