Converter IC. MB39A136 Datasheet

MB39A136 IC. Datasheet pdf. Equivalent

Part MB39A136
Description 2ch PFM/PWM DC/DC Converter IC
Feature MB39A136 2ch PFM/PWM DC/DC Converter IC with Synchronous Rectification MB39A136 is 2ch step-down DC.
Manufacture Cypress
Total Page 30 Pages
Datasheet
Download MB39A136 Datasheet



MB39A136
MB39A136
2ch PFM/PWM DC/DC Converter IC with
Synchronous Rectification
MB39A136 is 2ch step-down DC/DC converter IC of the current mode N-ch/N-ch synchronous rectification method. It contains the
enhanced protection features, and supports the symmetrical-phase method and the ceramic capacitor. MB39A136 realizes rapid
response, high efficiency, and low ripple voltage, and its high-frequency operation enables the miniaturization of inductors and I/O
capacitors.
Features
High efficiency
For frequency setting by external resistor : 100 kHz to 1 MHz
Error Amp threshold voltage
: 0.7 V ± 1.0%
Minimum output voltage value
: 0.7 V
Wide range of power-supply voltage
: 4.5 V to 25 V
PFM/PWM auto switching mode and fixed PWM mode selectable
Supports Symmetrical-Phase method
With built-in over voltage protection function
With built-in under voltage protection function
With built-in over current protection function
With built-in over-temperature protection function
With built-in soft start/stop circuit without load dependence
With built-in synchronous rectification type output steps for N-ch MOS FET
Standby current : 0 [μA] Typ
Small package : TSSOP-24
Application
Digital TV
Photocopiers
Surveillance cameras
Set-top boxes (STB)
DVD players, DVD recorders
Projectors
IP phones
Vending machine
Consoles and other non-portable devices
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 002-08376 Rev. *B
• San Jose, CA 95134-1709 • 408-943-2600
Revised December 10, 2018



MB39A136
MB39A136
Contents
Pin Assignment ................................................................ 3
Pin Description ................................................................. 4
Block Diagram .................................................................. 5
Absolute Maximum Ratings ............................................ 6
Recommended Operating Conditions ............................ 7
Electrical Characteristics ................................................. 8
Typical Characteristics .................................................. 12
Function Description ...................................................... 14
Current Mode ............................................................ 14
Protection Function Table ............................................. 18
I/O Pin Equivalent Circuit Diagram ............................... 19
Example Application Circuit .......................................... 21
Parts List ......................................................................... 22
Application Note ............................................................. 24
Reference Data ............................................................... 41
Usage Precaution ........................................................... 43
Ordering Information ...................................................... 44
EV Board Ordering Information ................................. 44
RoHS Compliance Information Of
Lead (Pb) Free Version .................................................. 45
Marking Format (Lead Free version) ......................... 45
Labeling Sample (Lead free version) ....................... 46
MB39A136PFT Recommended Conditions
Of Moisture Sensitivity Level ........................................ 47
Package Dimensions ...................................................... 48
Major Changes ................................................................ 49
Document Number: 002-08376 Rev. *B
Page 2 of 50





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