LM5160-Q1 (ACTIVE)

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

 

Description

The LM5160 family is a 65-V, 2-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 undervoltage lockout (EN/UVLO) circuit provides independently adjustable input undervoltage 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 Qualified for Automotive Applications
    • Temperature Grade 1: –40°C ≤ TA ≤ 125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C5
  • Wide 4.5-V to 65-V Input Voltage Range
  • Integrated High-Side and Low-Side Switches
    • No Schottky Diode Required
  • 2-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
  • Prebiased Start-Up
  • Peak Current Limiting Protection
  • Adjustable Input UVLO and Hysteresis
  • ±1% Feedback Voltage Reference
  • Thermal Shutdown Protection

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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
LM5160-Q1 LM25010 LM25017 LM46001-Q1 LM46002-Q1 LM5007 LM5010 LM5010A LM5010A-Q1 LM5017 LM5160A LMR16020 TPS57160-Q1
4.5    6    7.5    3.5    3.5    9    8    6    6    7.5    4.5    4.3    3.5   
65    42    48    60    60    75    75    75    75    100    65    60    60   
2    2.5    1.25    1    1    2.5    2.5    2.5    2.5    1.25    2    1    0.8   
60    37    40    28    28    73    70    70    70    90    60    50    58   
1.5    1    0.65    1    2    0.5    1    1    1    0.65    2    2    1.5   
1    1      1    1    1    1    1    1    1    1    1    1   
50    50    240    200    200    50    50    50    50    50    50    200    100   
1000    1000    1000    2200    2200    800    1000    1000    1000    1000    1000    2500    2500   
2.3    0.645    1.75    0.024    0.027    0.5    0.65    0.65    0.65    1.75    2.3    0.04    0.116   
Enable
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable   
Enable    Synchronous Rectification    Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Synchronous Rectification
Tracking   
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Synchronous Rectification
Tracking   
Enable    Enable    Enable    Enable    Synchronous Rectification
UVLO Adjustable   
Enable
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable   
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Tracking
UVLO Adjustable   
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Tracking
UVLO Adjustable   
Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Current Mode    Current Mode    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Current Mode    Current Mode   
92    99    90    99    99    99    99    99    99    90    92    98    100   
-40 to 125    -40 to 125    -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    -40 to 125    -40 to 125   
Automotive    Catalog    Catalog    Automotive    Automotive    Catalog    Catalog    Catalog    Automotive    Catalog    Catalog    Catalog    Automotive   
HTSSOP    HTSSOP
WSON   
SO PowerPAD
WSON   
HTSSOP    HTSSOP    VSSOP
WSON   
HTSSOP
WSON   
HTSSOP
WSON   
HTSSOP    SO PowerPAD
WSON   
WSON    SO PowerPAD    MSOP-PowerPAD
VSON   

Other qualified versions of LM5160-Q1

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