LMR23625-Q1 Automotive Qualified SIMPLE SWITCHER®, 4V to 36V, 2.5A Synchronous Step-Down Converter | TI.com

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, the device 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, forced-pulse-width-modulation (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
    • 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 Prebiased Load
  • High Duty-Cycle Operation Supported
  • Output Short-Circuit Protection With Hiccup Mode
  • 8-Pin HSOIC and 12-Pin WSON Wettable Flank 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 converters (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
Type
LMR23625-Q1 LM22672-Q1 LM43601-Q1 LM43602-Q1 LM43603-Q1 LMR14020-Q1 LMR14030-Q1 LMR16006Y-Q1 LMR23610-Q1 LMR23615-Q1 LMR23630-Q1
4     4.5     3.5     3.5     3.5     4     4     4     4     4     4    
36     42     36     36     36     40     40     40     36     36     36    
1     1.285     1     1     1     1     1     0.8     1     1     1    
34     37     28     28     28     30     30     36     34     28     34    
2.5     1     1     2     3     2     3.5     0.6     1     1.5     3    
1     1     1     1     1     1     1     1     1     1     1    
200     200     200     200     200     200     200     700     200     200     200    
2200     1000     2200     2200     2200     2500     2500     2100     2200     2200     2200    
0.075     3.4     0.033     0.027     0.027     0.04     0.04     0.028     0.075     0.075     0.075    
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
Enable     Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Synchronous Rectification
Tracking    
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Synchronous Rectification
Tracking    
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Synchronous Rectification
Tracking    
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Spread Spectrum
Tracking
UVLO Adjustable    
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
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
Current Mode     Voltage Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode    
99     90     99