LM63625-Q1 3.5-V to 36-V, 2.5-A step-down voltage converter with spread spectrum | TI.com

LM63625-Q1 (PREVIEW) 3.5-V to 36-V, 2.5-A step-down voltage converter with spread spectrum

 

More information and sample availability

Full datasheet and other design resources are available. Request now

LM63625 evaluation module (EVM) is available. Request now

Preproduction samples are available (PLM63625DQA0PWPRQ1). Request now

Description

The LM636x5-Q1 regulators are a family of easy-to-use, synchronous, step-down DC/DC converters designed for rugged automotive applications. The LM636x5-Q1 drive up to 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 power-good 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 a PowerPAD™ HTSSOP 16-pin power package.

Features

  • AEC-Q100-Qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, TA
  • Configured for rugged automotive applications
    • Input voltage range: 3.5 V to 36 V
    • Output voltage options: 3.3 V, 5 V, adjustable
      1 V to 24 V
    • Output current options: 1.5 A, 2.5 A, 3.5 A
    • Peak-current-mode control
    • Short minimum on-time of 50 ns
    • Frequency options: 400 kHz, 2.1 MHz,
      adjustable 250 kHz to 2200 kHz
    • Low shutdown quiescent current of 3 µA
    • Low operating quiescent current of 25 µA
    • Junction temperature range –40°C to +150°C

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Parametrics

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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)
LM63625-Q1 Order now 3     36     1     28     2.5       250     2200     24     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    
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    
Current Mode     98     -40 to 150     Automotive     HTSSOP | 16     Converter     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)