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LM25118-Q1 Wide Voltage Range Buc...
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Technical Documents
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LM25118-Q1 Wide Voltage Range Buck-Boost Controller
LM25118-Q1
SNVSAX7 – JUNE 2017
1 Features
1 AEC-Q100 Qualified for Automotive Applications – Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature – Device HBM ESD Classification Level 2 – Device CDM ESD Classification Level C6
Input Voltage Operating Range From 3 V to 42 V Emulated Peak Current Mode Control Smooth Transition Between Step-Down and Step-
Up Modes Switching Frequency Programmable to 500 KHz Oscillator Synchronization Capability Internal High Voltage Bias
Regulator Integrated High and Low-Side Gate Drivers Programmable Soft-Start Time Ultra-Low Shutdown Current Enable Input Wide Bandwidth Error Amplifier 1.5% Feedback Reference Accuracy Thermal Shutdown Package: 20-Pin HTSSOP (Exposed Pad) Create a Custom Design Using the LM25118-Q1
With the WEBENCH® Power Designer
2 Applications
Automotive Infotainment Automotive Start and Stop Systems Industrial Buck-Boost Supplies
VIN
VEN(ON) VEN(OFF)
0V
ON OFF
Simplified Schematic
VIN (1)
(16) VCC
UVLO (2) SYNC (11) VCCX (17)
(18) HB (19) HO
EN (4)
(20) HS
LM25118-Q1
(12) CS
SS (7) RAMP (5) RT (3)
(13) CSG (15) LO
AGND (6) PGND (14) DAP (EP)
(10) VOUT (8) FB
(9) COMP
VOUT
3 Description
The LM25118-Q1 wide voltage range Buck-Boost switching
regulator controller features all of the functions necessary to implement ...
