LM27313

ACTIVE

1.6 MHz boost converter with 30V Internal FET switch in SOT-23

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Product details

Parameters

Vin (Min) (V) 2.7 Vin (Max) (V) 14 Vout (Min) (V) 4 Vout (Max) (V) 28 Switch current limit (Typ) (A) 1.25 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 1150 Switching frequency (Max) (kHz) 1900 Iq (Typ) (mA) 2.1 Features Enable, Light Load Efficiency Duty cycle (Max) (%) 88 Operating temperature range (C) -40 to 125 Type Converter Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Boost converters (integrated switch)

Features

  • LM27313-Q1 is an Automotive-Grade Product
    that is AEC-Q100 Grade 1 Qualified (–40°C
    to +125°C Operating Junction Temperature)
  • 30-V DMOS FET Switch
  • 1.6-MHz Switching Frequency
  • Low RDS(ON) DMOS FET
  • Switch Current up to 800 mA
  • Wide Input Voltage Range (2.7 V to 14 V)
  • Low Shutdown Current (< 1 µA)
  • 5-Lead SOT-23 Package
  • Uses Tiny Capacitors and Inductors
  • Cycle-by-Cycle Current Limiting
  • Internally Compensated
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Description

The LM27313/-Q1 switching regulator is a current-mode boost converter with a fixed operating frequency of 1.6 MHz.

The use of the SOT-23 package, made possible by the minimal losses of the 800-mA switch, and the small inductors and capacitors result in extremely high power density. The 30-V internal switch makes these solutions perfect for boosting to voltages of 5 V to 28 V.

This device has a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

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Same functionality and pinout but is not an equivalent to the compared device:
LM27313-Q1 ACTIVE 1.6 MHz boost converter with 30V Internal FET switch in SOT-23, AEC-Q100 qualified 28-V Output voltage boost converter with power diode and isolation switch.
TLV61046A ACTIVE 28-V Output Voltage Boost Converter with Power Diode and Isolation Switch AEC-Q100 qualified for automotive applications.

Technical documentation

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Type Title Date
* Datasheet LM27313/-Q1 1.6-MHz Boost Converter With 30-V Internal FET Switch in SOT-23 datasheet (Rev. E) Oct. 23, 2014
Application notes Extend the Output Voltage Range With a Coupling Inductor Sep. 20, 2019
Application notes Design of UVLO for LM27313 (Rev. B) Apr. 08, 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODELS Download
SNVM670A.ZIP (104 KB) - PSpice Model
SIMULATION MODELS Download
SNVM881.ZIP (2 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
IP Net Camera Power Module Reference Solution
SAT0027 The SAT0027 IP Camera power module, is a highly efficient power solution that enables high performance 1080p IP Camera operation at the Class 1 PoE power level. This innovative power module relies on highly efficient switchers like the TPS5432 that are also very cost effective. The result is, TI (...)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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Videos

Power Tips: Layout for a Boost Power Stage

This video shows a simplified schematic and PCB layout for a boost converter

Posted: 21-Jan-2016
Duration: 04:31

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