LM2703 Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit | TI.com

LM2703 (ACTIVE) Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit

 

Recommended alternative parts

  • LM2704  -  Higher (550mA) Switch Current Limit
  • LM2705  -  150mA Switch Current Limit
  • LM2703  - The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.   Designs can achieve better performance

Description

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.

Features

  • 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

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Parametrics

Compare all products in Boost converters (integrated switch) Email Download to Excel
Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Switch current limit (Typ) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Type Rating Package Group
LM2703 Order now 2.2     7     1.24     21     0.35     1     600     2500     0.235     Enable     76     -40 to 85     Converter     Catalog     SOT-23 | 5    
LM2704 Order now 2.2     7     1.24     20     0.55     1     600     2500     0.235     Enable     76     -40 to 85     Converter     Catalog     SOT-23 | 5    
LM2705 Order now 2.2     7     1.24     20     0.55     1     600     2500     0.235     Enable     76     -40 to 85     Converter     Catalog     SOT-23 | 5