Wide Input 65V, 1.5A Synchronous Buck / Fly-Buck™ Converter - LM5160-Q1

LM5160-Q1 (ACTIVE)

Wide Input 65V, 1.5A Synchronous Buck / Fly-Buck™ Converter

 

Description

The LM5160 family is a 65-V, 1.5-A synchronous step-down converter with integrated high-side and low-side MOSFETs. The constant-on-time control scheme requires no loop compensation and supports high step-down ratios with fast transient response. An internal feedback amplifier maintains ±1% output voltage regulation over the entire operating temperature range. The on-time varies inversely with input voltage resulting in nearly constant switching frequency. Peak and valley current limit circuits protect against overload conditions. The under-voltage lockout (EN/UVLO) circuit provides independently adjustable input under-voltage threshold and hysteresis. The LM5160 is programmed through the FPWM pin to operate in continuous conduction mode (CCM) from no load to full load or to automatically switch to discontinuous conduction mode (DCM) at light load for higher efficiency. Forced CCM operation supports multiple output and isolated Fly-Buck applications using a coupled inductor.

Features

  • AEC-Q100 Grade 1 Qualified with the following
    results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
  • Wide 4.5-V to 65-V Input Voltage Range
  • Integrated High and Low Side Switches
    • No Schottky Diode Required
  • 1.5-A Maximum Load Current
  • Constant On-Time Control
    • No External Loop Compensation
    • Fast Transient Response
  • Selectable Forced CCM or DCM Operation
  • CCM Option Supports Multi-Output Fly-Buck
  • Nearly Constant Switching Frequency
  • Frequency Adjustable up to 1 MHz
  • Programmable Soft-Start Time
  • Pre-Biased Startup
  • Peak Current Limiting Protection
  • Adjustable Input UVLO and Hysteresis
  • ±1% Feedback Voltage Reference
  • Thermal Shutdown Protection

View more

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
LM5160-Q1 LM25010 LM25017 LM5007 LM5010 LM5010A LM5010A-Q1 LM5017 LM5160A
4.5    6    7.5    9    8    6    6    7.5    4.5   
65    42    48    75    75    75    75    100    65   
2    2.5    1.25    2.5    2.5    2.5    2.5    1.25    2   
60    37    40    73    70    70    70    90    60   
1.5    1    0.65    0.5    1    1    1    0.65    2   
1    1      1    1    1    1    1    1   
50    50    240    50    50    50    50    50    50   
1000    1000    1000    800    1000    1000    1000    1000    1000   
2.3    0.645    1.75    0.5    0.65    0.65    0.65    1.75    2.3   
Enable
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable   
Enable    Synchronous Rectification    Enable    Enable    Enable    Enable    Synchronous Rectification
UVLO Adjustable   
Enable
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable   
Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)   
92    99    90    99    99    99    99    90    92   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 150    -40 to 125
-40 to 150   
-40 to 125    -40 to 125   
Automotive    Catalog    Catalog    Catalog    Catalog    Catalog    Automotive    Catalog    Catalog   
HTSSOP    HTSSOP
WSON   
SO PowerPAD
WSON   
VSSOP
WSON   
HTSSOP
WSON   
HTSSOP
WSON   
HTSSOP    SO PowerPAD
WSON   
WSON   

Other qualified versions of LM5160-Q1

Version Part Number Definition
Catalog LM5160 TI's standard catalog product