TLV61225 Datasheet, PDF (1/18 Pages) Texas Instruments – SINGLE CELL HIGH EFFICIENT STEP-UP CONVERTER IN 6 PIN SC-70 PACKAGE

TLV61225
www.ti.com
SLVSAF0 – AUGUST 2010
SINGLE CELL HIGH EFFICIENT STEP-UP CONVERTER IN 6 PIN SC-70 PACKAGE
FEATURES
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• Up to 94% Efficiency at Typical Operating
Conditions
• 5 mA Quiescent Current
• Operating Input Voltage from 0.7 V to 3.3 V
• Pass-Through Function during Shutdown
• More than 40mA Output Current from a 1.2V
Input
• Typical Switch Current Rating 400 mA
• Output Overvoltage Protection
• Overtemperature Protection
• Fixed 3.3 V Output Voltage
• Small 6-pin SC-70 Package
APPLICATIONS
• Battery Powered Applications
– 1 to 2 Cell NiMH or Alkaline
– 1 cell Li-Primary
• Consumer and Portable Medical Products
• Personal Care Products
DESCRIPTION
The TLV61225 provides a power-supply solution for products powered by either a single-cell or two-cell alkaline
or NiMH, or one-cell Li-primary battery. Possible output currents depend on the input-to-output voltage ratio. The
boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum
efficiency at minimal quiescent currents. The output voltage of this device is set internally to a fixed output
voltage of 3.3 V. The converter can be switched off by a featured enable pin. While being switched off, battery
drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm x 2 mm to enable
small circuit layout size.
V_IN
0.8 V to V_OUT
L₁
4.7 µH
C₁
10 µF
L
VOUT
VIN
FB
EN
GND
V_OUT
C₂
3.3 V
10 µ F
TLV61225
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated