LM27313

ACTIVE

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

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.7 Vin (max) (V) 14 Switching frequency (min) (kHz) 1150 Switching frequency (max) (kHz) 1900 Features Enable, Light Load Efficiency, Nonsynchronous rectification Vout (min) (V) 4 Vout (max) (V) 28 Iq (typ) (µA) 2100 Duty cycle (max) (%) 88 Switch current limit (typ) (A) 1.25
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.7 Vin (max) (V) 14 Switching frequency (min) (kHz) 1150 Switching frequency (max) (kHz) 1900 Features Enable, Light Load Efficiency, Nonsynchronous rectification Vout (min) (V) 4 Vout (max) (V) 28 Iq (typ) (µA) 2100 Duty cycle (max) (%) 88 Switch current limit (typ) (A) 1.25
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 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
  • 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

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.

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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Technical documentation

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Type Title Date
* Data sheet LM27313/-Q1 1.6-MHz Boost Converter With 30-V Internal FET Switch in SOT-23 datasheet (Rev. E) PDF | HTML 23 Oct 2014
Application note Extend the Output Voltage Range With a Coupling Inductor 20 Sep 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Design of UVLO for LM27313 (Rev. B) 08 Apr 2014

Design & development

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

Simulation model

LM27313 Unencrypted PSpice Transient Model

SNVM881.ZIP (2 KB) - PSpice Model
Simulation model

LM27313 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM670A.ZIP (104 KB) - PSpice Model
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 5 Ultra Librarian

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

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