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LM2705

ACTIVE

Micropower step-up DC/DC converter with 150mA peak current limit

Product details

Topology Boost Vin (min) (V) 2.2 Vin (max) (V) 7 Vout (min) (V) 1.24 Vout (max) (V) 20 Switch current limit (typ) (A) 0.15 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
Topology Boost Vin (min) (V) 2.2 Vin (max) (V) 7 Vout (min) (V) 1.24 Vout (max) (V) 20 Switch current limit (typ) (A) 0.15 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
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 2.2-V to 7-V Input Range
  • 150-mA, 0.7-Ω Internal Switch
  • Adjustable Output Voltage up to 20 V
  • Input Undervoltage Lockout
  • 0.01-µA Shutdown Current
  • Uses Small Surface-Mount Components
  • Small 5-Pin SOT-23 Package
  • 2.2-V to 7-V Input Range
  • 150-mA, 0.7-Ω Internal Switch
  • Adjustable Output Voltage up to 20 V
  • Input Undervoltage Lockout
  • 0.01-µA Shutdown Current
  • Uses Small Surface-Mount Components
  • Small 5-Pin SOT-23 Package

The LM2705 is a micropower step-up DC-DC converter in a small 5-pin SOT-23 package. A current-limited, fixed-off-time control scheme conserves operating current, which results in high efficiency over a wide range of load conditions. The 21-V switch allows for output voltages as high as 20 V. The low 400-ns off-time permits the use of tiny, low-profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. The LM2705 is ideal for LCD panels requiring low current and high efficiency as well as white-LED applications for cellular phone back-lighting. The LM2705 device can drive up to 3 white LEDs from a single Li-Ion battery. The low peak-inductor current of the LM2705 makes it ideal for USB applications.

For all available packages, see the orderable addendum at the end of the data sheet.

The LM2705 is a micropower step-up DC-DC converter in a small 5-pin SOT-23 package. A current-limited, fixed-off-time control scheme conserves operating current, which results in high efficiency over a wide range of load conditions. The 21-V switch allows for output voltages as high as 20 V. The low 400-ns off-time permits the use of tiny, low-profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. The LM2705 is ideal for LCD panels requiring low current and high efficiency as well as white-LED applications for cellular phone back-lighting. The LM2705 device can drive up to 3 white LEDs from a single Li-Ion battery. The low peak-inductor current of the LM2705 makes it ideal for USB applications.

For all available packages, see the orderable addendum at the end of the data sheet.

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* Data sheet LM2705 Micropower Step-Up DC-DC Converter With 150-mA Peak Current Limit datasheet (Rev. F) PDF | HTML 25 Oct 2016

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SOT-23 (DBV) 5 View options

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