LM5160-Q1 Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter | TI.com

LM5160-Q1 (ACTIVE)

Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter

Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter - LM5160-Q1
 

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)