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LM2703

ACTIVE

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

Product details

Topology Boost Vin (min) (V) 2.2 Vin (max) (V) 7 Vout (min) (V) 1.24 Vout (max) (V) 21 Switch current limit (typ) (A) 0.35 Type Converter Regulated outputs (#) 1 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 2500 Iq (typ) (mA) 0.235 Features Enable, Nonsynchronous rectification Duty cycle (max) (%) 76 Operating temperature range (°C) -40 to 125 Rating Catalog Thermal resistance θJA (°C/W) 220
Topology Boost Vin (min) (V) 2.2 Vin (max) (V) 7 Vout (min) (V) 1.24 Vout (max) (V) 21 Switch current limit (typ) (A) 0.35 Type Converter Regulated outputs (#) 1 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 2500 Iq (typ) (mA) 0.235 Features Enable, Nonsynchronous rectification Duty cycle (max) (%) 76 Operating temperature range (°C) -40 to 125 Rating Catalog Thermal resistance θJA (°C/W) 220
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

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SOT-23 (DBV) 5 View options

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