LM63615-Q1 3.5-V to 36-V, 1.5-A step-down voltage converter with spread spectrum

Description

The LM636x5D-Q1 regulators are a family of easy-to-use, synchronous, step-down DC/DC converters designed for rugged automotive applications. The LM636x5D-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 LM636x5D-Q1 is available in both the HTSSOP 16-pin power package, with PowerPAD™, and the WSON 12-pin power package. Please contact Texas Instruments for availability of the WSON package.

Features

AEC-Q100-Qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
Supports automotive system requirements
- Input voltage range: 3.5 V to 36 V
- Short minimum on-time of 50 ns
- Good EMI performance
  Pseudo random spread spectrum
  Compatible with CISPR 25
- Low operating quiescent current of 23 µA
- Junction temperature range –40°C to +150°C
High design flexibility
- Pin selectable V_OUT: 3.3 V, 5 V, adjustable
  1 V to 20 V
- Output current: 1.5 A, and 2.5 A
- Pin selectable frequency: 400 kHz, 2.1 MHz,
  adjustable 250 kHz to 2200 kHz
- Pin selectable FPWM, AUTO, Sync modes
- Pin compatible with LM63635
- TSSOP: thermally enhanced package
- WSON: for space-constrained applications
Small solution size
- Typical: 20 mm x 13 mm for 2.5 A, 2200 kHz
- Highly integrated solution
- Low component count

All trademarks are the property of their respective owners.

New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH^® Designer LM63615-Q1

What are WEBENCH® tools?

Parametrics

Compare all products in Buck converters (integrated switch)

Download to Excel

Part number	Order	Vin (Min) (V)	Vin (Max) (V)	Vout (Min) (V)	Vout (Max) (V)	Iout (Max) (A)	Regulated outputs (#)	Switching frequency (Min) (kHz)	Switching frequency (Max) (kHz)	Iq (Typ) (mA)	Features	Control mode	Duty cycle (Max) (%)	Operating temperature range (C)	Rating	Package Group	Type	Package size: mm2:W x L (PKG)
LM63615-Q1	Order now	3.5	36	1	24	1.5	1	250	2200	0.023	Enable Fixed Output Forced PWM Frequency Synchronization Light Load Efficiency Power Good Soft Start Fixed Spread Spectrum Synchronous Rectification UVLO Fixed	Current Mode	99	-40 to 125	Automotive	HTSSOP \| 16	Converter	16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP \| 16)
LM53601-Q1	Order now	3.5	42	3.2	6	1	1	1890	2400	0.023	Enable Fixed Output Forced PWM Frequency Synchronization Light Load Efficiency Power Good Soft Start Fixed Spread Spectrum Synchronous Rectification UVLO Fixed Wettable Flanks Package Soft Start Fixed	Current Mode	98	-40 to 150	Automotive	WSON \| 10	Converter	10WSON: 9 mm2: 3 x 3 (WSON \| 10)
LM53603-Q1	Order now	3.5	42	3.2	9.9	3	1	1850	2350	0.023	Enable Forced PWM Frequency Synchronization Light Load Efficiency Over Current Protection Power Good Synchronous Rectification Soft Start Fixed	Current Mode	98	-40 to 150	Automotive	HTSSOP \| 16	Converter	16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP \| 16)

	Min		Max	Range
Vin		–	V	3.5 to 36.0V
Vout			V	1 to 24V
Iout			A	≤ 1.5A
Ambient Temp			°C	-40 to 125°C

LM63615-Q1 ACTIVE This product has been released to the market and is available for purchase. For some products, newer alternatives may be available. 3.5-V to 36-V, 1.5-A step-down voltage converter with spread spectrum

Description

Features

WEBENCH® Designer LM63615-Q1

Parametrics

LM63615-Q1
ACTIVE

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

3.5-V to 36-V, 1.5-A step-down voltage converter with spread spectrum

WEBENCH^® Designer LM63615-Q1