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

LM63625-Q1
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3.5-V to 36-V, 2.5-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 VOUT: 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

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  Min   Max Range
Vin  V 3.5 to 36.0V
Vout  V 1 to 24V
Iout  A ≤ 2.5A
Ambient Temp  °C -40 to 125°C

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 3.5     36     1     20     2.5     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)