LM5575 6V to 75V, 1.5A Wide Vin Step-Down Regulator | TI.com

LM5575 (ACTIVE) 6V to 75V, 1.5A Wide Vin Step-Down Regulator

 

Recommended alternative parts

  • LM46002  -  3.5 to 60V, 2A Synchronous Step-Down Voltage Regulator - Higher efficiency, Low Quiescent Current, Smaller Solution Size
  • LM46001  -  3.5 to 60V, 1A Synchronous Step-Down Voltage Regulator - Higher efficiency, Low Quiescent Current, Smaller Solution Size

Description

The LM5575 is an easy to use SIMPLE SWITCHER® buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 - 75V, the LM5575 delivers 1.5A of continuous output current with an integrated 330mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5575 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced HTSSOP-16 package featuring an exposed die attach pad for thermal dissipation. The LM5575 is supported by the full suite of WEBENCH On-Line design tools.

Features

  • LM5575Q is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (−40°C to + 125°C Operating Junction Temperature)
  • Integrated 75V, 330mΩ N-channel MOSFET
  • Ultra-wide Input Voltage Range from 6V to 75V
  • Adjustable Output Voltage as Low as 1.225V
  • 1.5% Feedback Reference Accuracy
  • Operating Frequency Adjustable Between 50kHz and 500kHz with Single Resistor
  • Master or Slave Frequency Synchronization
  • Adjustable Soft-Start
  • Emulated Current Mode Control Architecture
  • Wide Bandwidth Error Amplifier
  • Built-in Protection
  • Automotive Grade Product Datasheet that is AEC-Q100 Grade 0 Qualified is Available Upon Request.
    • (−40°C to + 150°C Operating Junction Temperature)

Package

  • HTSSOP-16EP (Exposed Pad)

WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer LM5575

Topology Option
  Min   Max Range
Vin  V
Vout  V
Iout  A
Ambient Temp  °C -40 to 125°C

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)
LM5575 Order now 6     75     1.23     70     1.5     1     50     500     1     Enable
Frequency Synchronization
Over Current Protection
Tracking    
Current Mode     95     -40 to 125     Catalog     HTSSOP | 16     Converter     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)    
LM5010A Order now 6     75     2.5     70     1     1     50     1000     0.65     Enable
Over Current Protection    
Constant on-time (COT)     99     -40 to 150     Catalog     HTSSOP | 14
WSON | 10    
Converter     14HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 14)
See datasheet (WSON)    
LM5161 Order now 4.5     100     2     92     1     1     50     1000     2.3     Enable
Forced PWM
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
COT with emulated ripple
Constant on-time (COT)    
92     -40 to 125     Catalog     HTSSOP | 14     Converter     14HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 14)    
LM5164 Order now 6     100     1.2     90     1     1     75     1000     0.01     Enable
Light Load Efficiency
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Constant on-time (COT)     99     -40 to 150     Catalog     SO PowerPAD | 8     Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)    
LM5164-Q1 Order now 6     100     1.2     90     1     1     75     1000     0.01     Enable
Light Load Efficiency
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Constant on-time (COT)     99     -40 to 150     Automotive