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

 

Description

The LM5160-Q1 is a 65-V, 2-A synchronous step-down converter with integrated high-side and low-side MOSFETs. The adaptive 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-Q1 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.

The LM5160-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in 14-pin HTSSOP package with 0.65-mm pin pitch.

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 External Schottky Diode Required
  • 2-A Maximum Load Current
  • Meets CISPR 25 EMI Standard
  • Adaptive Constant On-Time Control
    • No External Loop Compensation
    • Fast Transient Response
  • Selectable Forced PWM or DCM Operation
    • FPWM Supports Multi-Output Fly-Buck™
  • Nearly Constant Switching Frequency
    • Resistor Adjustable up to 1 MHz
  • Programmable Soft-Start Time
  • Prebiased Start-Up
  • ±1% Feedback Voltage Reference
  • Inherent Protection Features for Robust Design
    • Peak Current Limiting Protection
    • Adjustable Input UVLO and Hysteresis
    • VCC and Gate Drive UVLO Protection
    • Thermal Shutdown Protection With Hysteresis
  • 14-Pin HTSSOP Package, 0.65-mm Pitch
  • Create a Custom Design Using the LM5160-Q1 With the WEBENCH® Power Designer

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WEBENCH ® Designer LM5160-Q1

  Min   Max Range
Vin -  V 4.50 to 65.00V
Vout  V 2.00 to 50.00V
Iout  A ≤ 2.00A
Ambient Temp   °C ≤ 100 °C
Isolated Output

Parametrics

Compare all products in Buck converters (integrated switch) Email Download to Excel
Part number Order 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 Package size: mm2:W x L (PKG)
LM5160-Q1 Order now 4.5     65     2     60     1.5     1     50     1000     2.3     Enable
Forced PWM
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Constant on-time (COT)     92     -40 to 125     Automotive     HTSSOP | 14     Converter     14HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 14)    
LM25010 Order now 6     42     2.5     37     1     1     50     1000     0.645     Enable
Over Current Protection    
Constant on-time (COT)     99     -40 to 125     Catalog     HTSSOP | 14
WSON | 10    
Converter     14HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 14)
See datasheet (WSON)    
LM25017 Order now 7.5     48     1.25     40     0.65     1     240     1000     1.75     Over Current Protection
Synchronous Rectification    
Constant on-time (COT)     90     -40 to 125     Catalog     SO PowerPAD | 8
WSON | 8    
Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
See datasheet (WSON)    
LM46001-Q1 Order now 3.5     60     1     28     1     1     200     2200     0.024     Enable
Frequency Synchronization
Light Load Efficiency
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking    
Current Mode     99     -40 to 125     Automotive     HTSSOP | 16     Converter     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)    
LM46002-Q1 Order now 3.5     60     1     28     2     1     200     2200