LM25010MHX/NOPB ,6-42V Wide Vin, 1A, Constant On-Time Non-Synchronous Buck Regulator 14-HTSSOP -40 to 125 SNVS419E–DECEMBER 2005–REVISED MAY 20165 Pin Configuration and FunctionsDPR PackagePWP Package10-P ..
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LM25010MHX/NOPB
42V, 1.0A Wide Vin Step-Down Switching Regulator
VIN
BST
LM25010VCC
RON/SD
6V - 42V
Input
RON
VOUTL1
RTN
SGND
SHUTDOWN
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LM25010, LM25010-Q1SNVS419E –DECEMBER 2005–REVISED MAY 2016
LM25010, LM25010-Q1 42-V, 1-A Step-Down Switching Regulator Features LM25010-Q1 Qualified for Automotive
Applications AEC-Q100 Qualified With the Following Results: Device Temperature Grade1: –40°Cto 125°C
Ambient Operating Temperature Range Device Temperature Grade0: –40°Cto 150°C
Ambient Operating Temperature Range Device HBM ESD Classification Level2 Device CDM ESD Classification Level C5 Wide 6-Vto 42-V Input Voltage Range Valley Current Limitingat 1.25A Programmable Switching Frequency Up To1 MHz Integrated N-Channel Buck Switch Integrated High Voltage Bias Regulator No Loop Compensation Required Ultra-Fast Transient Response Nearly Constant Operating Frequency With Line
and Load Variations Adjustable Output Voltage 2.5V, ±2% Feedback Reference Programmable Soft Start Thermal Shutdown
Applications Non-Isolated Telecommunications Regulators Secondary Side Post Regulators Automotive Electronics
DescriptionThe LM25010 features all the functions neededto
implement a low-cost, efficient, buck regulator
capableof supplyingin excessof 1-A load current.
This high voltage regulator integrates an N-Channel
Buck Switch, andis availablein thermally enhanced
10-pin WSON and 14-pin HTSSOP packages. The
constant ON-time regulation scheme requiresno loop
compensation resulting in fast load transient
response and simplified circuit implementation. The
operating frequency remains constant with line and
load variations due to the inverse relationship
between the input voltage and the ON-time. The
valley current limit detection is set at 1.25 A.
Additional features include: VCC undervoltage
lockout, thermal shutdown, gate drive undervoltage
lockout, and maximum duty cycle limiter.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Basic Step-Down Regulator
