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TLV61225_15 Datasheet, PDF (1/21 Pages) Texas Instruments – TLV61225 Single-Cell High-Efficient Step-Up Converter in 6-Pin SC-70 Package | |||
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TLV61225
SLVSAF0A â AUGUST 2010 â REVISED MAY 2015
TLV61225 Single-Cell High-Efficient Step-Up Converter in 6-Pin SC-70 Package
1 Features
â¢1 Up to 94% Efficiency at Typical Operating
Conditions
⢠5-μA Quiescent Current
⢠Operating Input Voltage from 0.7 V to 3.3 V
⢠Pass-Through Function During Shutdown
⢠Output Current of More Than 40-mA From a 1.2-V
Input
⢠Typical Switch Current Rating 400 mA
⢠Output Overvoltage Protection
⢠Overtemperature Protection
⢠Fixed 3.3-V Output Voltage
⢠Small 6-Pin SC-70 Package
2 Applications
⢠Battery-Powered Applications
â 1- to 2- Cell NiMH or Alkaline
â 1-Cell Li-Primary
⢠Consumer and Portable Medical Products
⢠Personal Care Products
3 Description
The TLV61225 device provides a power-supply
solution for products powered by either a single-cell
or 2-cell alkaline or NiMH, or 1-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 à 2 mm to enable
small circuit layout size.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV61225
SOT (6)
2.00 mm à 1.25 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VIN
0.8 V to VOUT
Typical Application Schematic
L1
L
4.7 µH
VOUT
C1
10 µF
VIN
FB
EN
GND
VOUT
C2
3.3 V
10 µ F
TLV61225
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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