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LM25088-Q1

Texas Instruments
Part Number LM25088-Q1
Manufacturer Texas Instruments
Description Wide Input Range Non-Synchronous Buck Controllers
Published May 19, 2023
Detailed Description LM25088, LM25088-Q1 SNVS609K – DECEMBER 2008 – REVISED JUNE 2022 LM25088, LM25088-Q1 Wide Input Range Non-Synchronous Bu...
Datasheet PDF File LM25088-Q1 PDF File

LM25088-Q1
LM25088-Q1

Overview
LM25088, LM25088-Q1 SNVS609K – DECEMBER 2008 – REVISED JUNE 2022 LM25088, LM25088-Q1 Wide Input Range Non-Synchronous Buck Controllers 1 Features • AEC-Q100 qualified with the following results: – Device temperature grade 1: –40°C to +125°C ambient operating temperature range – Device HBM ESD classification level 2 – Device CDM ESD classification level C5 • Emulated current mode control • Drives external high-side N-channel MOSFET • Ultra-wide input voltage range from 4.
5 V to 42 V • Low IQ shutdown and standby modes • High duty cycle ratio feature for reduced dropout voltage • Spread spectrum EMI reduction (LM25088-1) • Hiccup timer for overload protection (LM25088-2) • Adjustable output voltage from 1.
205 V with 1.
5% feedback reference accuracy • Wide bandwidth error amplifier • Single resistor oscillator frequency setting • Oscillator synchronization capability • Programmable soft start • High voltage, low dropout bias regulator • Thermal shutdown protection • 16-pin HTSSOP package 2 Applications • Automotive infotainment • Automotive USB accessory adapters • Industrial DC-DC bias and motor drivers VIN (4.
5 V-42 V) RUV2 CIN RUV1 CDITHER/RESTART CVCC RRAMP CRAMP EN VIN BOOT HG DITH/RES SW LM25088 VCC CS RAMP SS CSG OUT CBOOT Q L D COUT1 Rs CSS RT/SYNC FB RRT RCOMP CCOMP GND COMP VOUT RFB2 COUT2 RFB1 CHF Copyright © 2016, Texas Instruments Incorporated Simplified Schematic 3 Description The LM25088 high voltage non-synchronous buck controller features all the necessary functions to implement an efficient, high-voltage buck converter using the minimum number of external components.
The LM25088 can be configured to operate over an ultra-wide input voltage range of 4.
5 V to 42 V.
This easy-to-use controller includes a level-shifted gate driver capable of controlling an external N-channel buck switch.
The control method is based on peak current mode control utilizing an emulated current ramp.
The use of an emulated control ramp reduces noi...


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