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See Technical Specifications

LM63615DQDRRRQ1

Buck Switching Regulator IC Positive Adjustable 1V 1 Output 1.5A 12-WFDFN Exposed Pad

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM63615DQDRRRQ1
Datasheet:

LM63615DQDRRRQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Function:

Step-Down
Output Configuration:

Positive
Topology:

Buck
EDA/CAD Models:

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LM63615DQDRRRQ1 General Description

The LM636x5-Q1 is an easy-to-use, synchronous, step-down DC/DC converter designed for rugged automotive applications. The LM636x5-Q1 can drive up to 1.5-A or 2.5-A of load current from an input of up to 36 V. The converter has high light load efficiency and output accuracy in a small solution size. Features such as a RESET flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency while maintaining tight load regulation. Integration eliminates many external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LM636x5-Q1 is available in the HTSSOP 16-pin power package, with PowerPAD™ , and the WSON 12-pin power package.

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Key Features

AEC-Q100-qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
Functional Safety-Capable
- Documentation available to aid functional safety system design
Supports automotive system requirements
- Input voltage range: 3.5 V to 36 V
- Short 50-ns minimum on time
- Good EMI performance Pseudo-random spread spectrum Compatible with CISPR 25
- 23-µA low operating quiescent current
- –40°C to +150°C junction temperature range
High design flexibility
- Pin selectable V_OUT: 3.3 V, 5 V, adjustable 1 V to 20 V
- Pin compatible with the LM63610 and LM63635 (1 A, 3.25 A)
- Pin selectable frequency: 400 kHz, 2.1 MHz, adjustable 250 kHz to 2200 kHz
- Pin selectable FPWM, auto, sync modes
- TSSOP: thermally enhanced package
- WSON: for space-constrained applications
Small solution size
- As small as 10 mm × 10 mm for 2.5 A, 2.2 MHz with WSON package
- Highly integrated solution
- Low component count

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators	Series	Automotive, AEC-Q100
Function	Step-Down	Output Configuration	Positive
Topology	Buck	Output Type	Adjustable
Number of Outputs	1	Voltage - Input (Min)	3.5V
Voltage - Input (Max)	36V	Voltage - Output (Min/Fixed)	1V
Voltage - Output (Max)	20V	Current - Output	1.5A
Frequency - Switching	250kHz ~ 2.2MHz	Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 150°C (TJ)	Mounting Type	Surface Mount, Wettable Flank
Base Product Number	LM63615	Vin (min) (V)	3.5
Vin (max) (V)	36	Vout (min) (V)	1
Vout (max) (V)	24	Iout (max) (A)	1.5
Iq (typ) (mA)	0.023	Switching frequency (min) (kHz)	250
Switching frequency (max) (kHz)	2200	EMI features	Spread Spectrum
Features	Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed	Operating temperature range (°C)	-40 to 150
Rating	Automotive	TI functional safety category	Functional Safety-Capable
Regulated outputs (#)	1	Control mode	current mode
Duty cycle (max) (%)	99	Type	Converter
Pin Count	13	Released Date	May 21, 2021
Last Modified Date	Mar 7, 2023 4:10 PM UTC