TLV61225 Converter Datasheet

TLV61225 Datasheet, PDF, Equivalent


Part Number

TLV61225

Description

Single-Cell High-Efficient Step-Up Converter

Manufacture

etcTI

Total Page 21 Pages
Datasheet
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TLV61225
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TLV61225
SLVSAF0A – AUGUST 2010 – REVISED MAY 2015
TLV61225 Single-Cell High-Efficient Step-Up Converter in 6-Pin SC-70 Package
1 Features
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
– 1- to 2- Cell NiMH or Alkaline
– 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 × 2 mm to enable
small circuit layout size.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV61225
SOT (6)
2.00 mm × 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
4.7 µH
L
VOUT
C1
10 µF
VIN
EN
GND
FB
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.

TLV61225
TLV61225
SLVSAF0A – AUGUST 2010 – REVISED MAY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 3
6.1 Absolute Maximum Ratings ...................................... 3
6.2 ESD Ratings.............................................................. 3
6.3 Recommended Operating Conditions....................... 3
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 4
6.6 Dissipation Ratings ................................................... 4
6.7 Typical Characteristics .............................................. 5
7 Detailed Description .............................................. 7
7.1 Overview ................................................................... 7
7.2 Functional Block Diagram ......................................... 7
7.3 Feature Description................................................... 7
7.4 Device Functional Modes.......................................... 8
8 Application and Implementation .......................... 9
8.1 Application Information.............................................. 9
8.2 Typical Application ................................................... 9
9 Power Supply Recommendations...................... 12
10 Layout................................................................... 12
10.1 Layout Guidelines ................................................. 12
10.2 Layout Example .................................................... 12
10.3 Thermal Consideration.......................................... 13
11 Device and Documentation Support ................. 14
11.1 Device Support...................................................... 14
11.2 Documentation Support ........................................ 14
11.3 Community Resources.......................................... 14
11.4 Trademarks ........................................................... 14
11.5 Electrostatic Discharge Caution ............................ 14
11.6 Glossary ................................................................ 14
12 Mechanical, Packaging, and Orderable
Information ........................................................... 14
4 Revision History
Changes from Original (August 2010) to Revision A
Page
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
2 Submit Documentation Feedback
Product Folder Links: TLV61225
Copyright © 2010–2015, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TLV61225 SLVSAF0A – AUGUST 2010 – REVISED MAY 2015 TLV61225 Sin gle-Cell High-Efficient Step-Up Convert er in 6-Pin SC-70 Package 1 Features 1 Up to 94% Efficiency at Typical Ope rating Conditions • 5-μA Quiescent C urrent • Operating Input Voltage from 0.7 V to 3.3 V • Pass-Through Functi on During Shutdown • Output Current o f More Than 40-mA From a 1.2-V Input Typical Switch Current Rating 400 mA • Output Overvoltage Protection • O vertemperature Protection • Fixed 3.3 -V Output Voltage • Small 6-Pin SC-70 Package 2 Applications • Battery-Pow ered Applications – 1- to 2- Cell NiM H or Alkaline – 1-Cell Li-Primary • Consumer and Portable Medical Products • Personal Care Products 3 Descript ion The TLV61225 device provides a powe r-supply solution for products powered by either a single-cell or 2-cell alkal ine or NiMH, or 1-cell Li-primary battery. Possible output currents depend on the input-tooutput v.
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