LM2703

ACTIVE

Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit

Product details

Vin (min) (V) 2.2 Vin (max) (V) 7 Topology Boost Type Converter Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 2500 Features Enable, Nonsynchronous rectification Vout (min) (V) 1.24 Vout (max) (V) 21 Rating Catalog Operating temperature range (°C) -40 to 125
Vin (min) (V) 2.2 Vin (max) (V) 7 Topology Boost Type Converter Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 2500 Features Enable, Nonsynchronous rectification Vout (min) (V) 1.24 Vout (max) (V) 21 Rating Catalog Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 350mA, 0.7Ω, Internal Switch
  • Uses Small Surface Mount Components
  • Adjustable Output Voltage up to 21V
  • 2.2V to 7V Input Range
  • Input Undervoltage Lockout
  • 0.01µA Shutdown Current
  • Small 5-Lead SOT-23 Package

All trademarks are the property of their respective owners.

  • 350mA, 0.7Ω, Internal Switch
  • Uses Small Surface Mount Components
  • Adjustable Output Voltage up to 21V
  • 2.2V to 7V Input Range
  • Input Undervoltage Lockout
  • 0.01µA Shutdown Current
  • Small 5-Lead SOT-23 Package

All trademarks are the property of their respective owners.

The LM2703 is a micropower step-up DC/DC in a small 5-lead SOT-23 package. A current limited, fixed off-time control scheme conserves operating current resulting in high efficiency over a wide range of load conditions. The 22V switch allows for output voltages as high as 21V. The low 400ns off-time permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. The LM2703 is ideal for LCD panels requiring low current and high efficiency as well as white LED applications for cellular phone back-lighting. The LM2703 can drive up to 4 white LEDs from a single Li-Ion battery.

The LM2703 is a micropower step-up DC/DC in a small 5-lead SOT-23 package. A current limited, fixed off-time control scheme conserves operating current resulting in high efficiency over a wide range of load conditions. The 22V switch allows for output voltages as high as 21V. The low 400ns off-time permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. The LM2703 is ideal for LCD panels requiring low current and high efficiency as well as white LED applications for cellular phone back-lighting. The LM2703 can drive up to 4 white LEDs from a single Li-Ion battery.

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Technical documentation

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Type Title Date
* Data sheet LM2703 Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit datasheet (Rev. F) 01 May 2013
EVM User's guide AN-1277 LM2703/LM2704 Evaluation Board (Rev. A) 29 Apr 2013

Design & development

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SOT-23 (DBV) 5 View options

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