LMR23625-Q1 (ACTIVE)

Automotive Qualified SIMPLE SWITCHER, 4V to 36V, 2.5A Synchronous Step-Down Converter

 

Description

The LMR23625-Q1 SIMPLE SWITCHER® is an easy to use 36 V, 2.5 A synchronous step down regulator. With a wide input range from 4 V to 36 V, it is suitable for various applications from industrial to automotive for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 µA makes it suitable for battery powered systems. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components. The device has option for fixed frequency FPWM mode to achieve small output voltage ripple at light load. An extended family is available in 1 A (LMR23610-Q1), 1.5 A (LMR23615-Q1) and 3 A (LMR23630-Q1) load current options in pin-to-pin compatible packages which allows simple, optimum PCB layout. A precision enable input allows simplification of regulator control and system power sequencing. Protection features include cycle-by-cycle current limit, hiccup mode short circuit protection and thermal shutdown due to excessive power dissipation.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    - Device Temperature Grade 1: -40 °C to 125 °C Ambient Operating Temperature Range
    - Device HBM ESD Classification Level H1C
    - Device CDM ESD Classification Level C4A
  • 4 V to 36 V Input Range
  • 2.5 A Continuous Output Current
  • Integrated Synchronous Rectification
  • Minimum Switch-On Time: 60 ns
  • Internal Compensation for Ease of Use
  • Fixed 2.1 MHz Switching Frequency
  • PFM and Forced PWM Mode Options at Light Load
  • Frequency Synchronization to External Clock
  • 75 µA Quiescent Current at No Load for PFM Option
  • Power Good Option
  • Soft-Start into a Pre-Biased Load
  • High Duty Cycle Operation Supported
  • Output Short-Circuit Protection with Hiccup Mode
  • 8-Pin HSOIC and 12-Pin WSON with PowerPAD™ Package Options
  • Create a Custom Design Using the LMR23625-Q1 With the WEBENCH® Power Designer

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Parametrics Compare all products in Buck Converter (Integrated Switch)

 
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
LMR23625-Q1 LM43603-Q1 LM5576-Q1 LMR14030-Q1 LMR16006Y-Q1 LMR23610-Q1 LMR23630-Q1
4    3.5    6    4    4    4    4   
36    36    75    40    40    36    36   
1    1    1.23    1    0.8    1    1   
34    28    70    30    36    34    34   
2.5    3    3    3.5    0.6    1    3   
1    1    1    1    1    1    1   
200    200    50    200    700    200    200   
2200    2200    500    2500    2100    2200    2200   
0.075    0.027    1    0.04    0.028    0.075    0.075   
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification   
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Synchronous Rectification
Tracking   
Enable    Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Spread Spectrum
Tracking
UVLO Adjustable   
Enable
Light Load Efficiency
Pre-Bias Start-Up
UVLO Adjustable   
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification   
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification   
Current Mode    Current Mode    Current Mode    Current Mode    Current Mode    Current Mode    Current Mode   
99    99    95    98    97    99    99   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
Automotive    Automotive    Automotive    Automotive    Automotive    Automotive    Automotive   
SO PowerPAD    HTSSOP    HTSSOP    SO PowerPAD
WSON   
SOT-23-THIN    SO PowerPAD    SO PowerPAD   

Other qualified versions of LMR23625-Q1

Version Part Number Definition
Catalog LMR23625 TI's standard catalog product

WEBENCH® Designer LMR23625-Q1

  Min   Max Range
Vin  V 4.0 to 36.0V
Product Option
Vout  V
Iout  A ≤ 2.5A
Ambient Temp  °C -40.0 to 125.0°C