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See Technical Specifications

LM25117PMHE/NOPB +BOM

4.5-42V Wide Vin, Current Mode Synchronous Buck Controller with Tracking

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM25117PMHE/NOPB
Datasheet:

LM25117PMHE/NOPB Datasheet (PDF)
Vin (min) (V):

4.5
Vin (max) (V):

42
Vout (min) (V):

0.8
Vout (max) (V):

41
EDA/CAD Models:

Request Free CAD Models for LM25117PMHE/NOPB

LM25117PMHE/NOPB Information

General Description

The implementation of a unique analog telemetry feature in the LM25117PMHE/NOPB allows for real-time monitoring of the average output current, providing valuable feedback for system optimization. Furthermore, the controller's thermal shutdown, frequency synchronization, and hiccup mode current limit functions ensure reliable and robust operation in varying operating conditions. With its programmable operating frequency, adaptive dead-time control, and user-selectable diode emulation mode, the LM25117 offers a comprehensive solution for step-down regulator applications

Key Features

LM25117-Q1 is Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: -40°C to 125°C Ambient Operating Temperature Range
Emulated Peak Current Mode Control
Wide Operating Range from 4.5 V to 42 V
Robust 3.3 A Peak Gate Drives
Adaptive Dead-time Output Driver Control
Free-run or Synchronizable Clock up to 750 kHz
Optional Diode Emulation Mode
Programmable Output from 0.8 V
Precision 1.5% Voltage Reference
Analog Current Monitor
Programmable Current Limit
Hiccup Mode Over Current Protection
Programmable Soft-start and Tracking
Programmable Line Undervoltage Lockout
Programmable Switch-over to External Bias Supply
Thermal Shutdown

Specifications

Vin (min) (V)	4.5	Vin (max) (V)	42
Vout (min) (V)	0.8	Vout (max) (V)	41
Iout (max) (A)	20	Iq (typ) (mA)	4.8
Switching frequency (min) (kHz)	50	Switching frequency (max) (kHz)	750
Features	Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Synchronous Rectification, Tracking, UVLO adjustable	Operating temperature range (°C)	-40 to 125
Regulated outputs (#)	1	Number of phases	1
Rating	Catalog	Control mode	current mode
Type	Controller	feature-topology	Step Down
feature-number-of-outputs	1	feature-output-voltage-v	0.8 to 41
feature-minimum-output-current-a		feature-maximum-output-current-a	20
feature-minimum-input-voltage-v	4.5	feature-maximum-switching-frequency-khz	750
feature-maximum-input-voltage-v	42	feature-operating-supply-voltage-v	4.5 to 42
feature-maximum-supply-current-ma	5.8(Typ)	feature-maximum-power-dissipation-mw
feature-minimum-switching-frequency-khz	50	feature-synchronous-rectifier	Yes
feature-synchronous-clock	Yes	feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	20
feature-cecc-qualified	No	feature-esd-protection	Yes
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No
Package/Case	HTSSOP20