TLV61220 Converter Datasheet

TLV61220 Datasheet, PDF, Equivalent


Part Number

TLV61220

Description

Low-Input Voltage Step-Up Converter

Manufacture

etcTI

Total Page 25 Pages
Datasheet
Download TLV61220 Datasheet


TLV61220
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TLV61220
SLVSB53A – MAY 2012 – REVISED DECEMBER 2014
TLV61220 Low-Input Voltage Step-Up Converter in Thin SOT-23 Package
1 Features
1 Up to 95% Efficiency at Typical Operating
Conditions
• 5.5-μA Quiescent Current
• Startup Into Load at 0.7-V Input Voltage
• Operating Input Voltage from 0.7 V to 5.5 V
• Pass-Through Function during Shutdown
• Minimum Switching Current 200 mA
• Protections:
– Output Overvoltage
– Overtemperature
– Input Undervoltage Lockout
• Adjustable Output Voltage from 1.8 V to 5.5 V
• Small 6-pin Thin SOT-23 Package
2 Applications
• Battery Powered Applications
– 1 to 3 Cell Alkaline, NiCd or NiMH
– 1 Cell Li-Ion or Li-Primary
• Solar or Fuel Cell Powered Applications
• Consumer and Portable Medical Products
• Personal Care Products
• White or Status LEDs
• Smartphones
3 Description
The TLV61220 device provides a power-supply
solution for products powered by either a single-cell,
two-cell, or three-cell alkaline, NiCd or NiMH, or one-
cell Li-Ion or Li-polymer 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 the adjustable version
can be programmed by an external resistor divider, or
is set internally to a fixed output voltage. The
converter can be switched off by a featured enable
pin. While being switched off, battery drain is
minimized. The device is packaged in a 6-pin thin
SOT-23 package (DBV).
spacer
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV61220
SOT (6)
2.90 mm x 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Typical Application Schematic
TLV61220
L
1
4.7:H
SW VOUT
V
IN
0.7V to V
OUT
C
1
10:F
VBAT
EN
GND
FB
R
1
R
2
C
2
10:F
V
OUT
1.8V to 5.5V
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.

TLV61220
TLV61220
SLVSB53A – MAY 2012 – REVISED DECEMBER 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Typical Application Schematic............................. 1
5 Revision History..................................................... 2
6 Device Options....................................................... 3
7 Pin Configuration and Functions ......................... 3
8 Specifications......................................................... 4
8.1 Absolute Maximum Ratings ...................................... 4
8.2 ESD Ratings.............................................................. 4
8.3 Recommended Operating Conditions....................... 4
8.4 Thermal Information .................................................. 4
8.5 Electrical Characteristics........................................... 5
8.6 Typical Characteristics .............................................. 6
9 Parameter Measurement Information .................. 9
10 Detailed Description ........................................... 10
10.1 Overview ............................................................... 10
10.2 Functional Block Diagram ..................................... 10
10.3 Feature Description............................................... 10
10.4 Device Functional Modes...................................... 11
11 Application and Implementation........................ 12
11.1 Application Information.......................................... 12
11.2 Typical Application ............................................... 12
12 Power Supply Recommendations ..................... 16
13 Layout................................................................... 16
13.1 Layout Guidelines ................................................. 16
13.2 Layout Example .................................................... 16
13.3 Thermal Considerations ........................................ 16
14 Device and Documentation Support ................. 17
14.1 Device Support...................................................... 17
14.2 Documentation Support ........................................ 17
14.3 Trademarks ........................................................... 17
14.4 Electrostatic Discharge Caution ............................ 17
14.5 Glossary ................................................................ 17
15 Mechanical, Packaging, and Orderable
Information ........................................................... 17
5 Revision History
Changes from Original (May 2012) to Revision A
Page
• Added 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: TLV61220
Copyright © 2012–2014, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TLV61220 SLVSB53A – MAY 20 12 – REVISED DECEMBER 2014 TLV61220 L ow-Input Voltage Step-Up Converter in T hin SOT-23 Package 1 Features •1 Up to 95% Efficiency at Typical Operating Conditions • 5.5-μA Quiescent Curren t • Startup Into Load at 0.7-V Input Voltage • Operating Input Voltage fro m 0.7 V to 5.5 V • Pass-Through Funct ion during Shutdown • Minimum Switchi ng Current 200 mA • Protections: – Output Overvoltage – Overtemperature – Input Undervoltage Lockout • Adju stable Output Voltage from 1.8 V to 5.5 V • Small 6-pin Thin SOT-23 Package 2 Applications • Battery Powered Appl ications – 1 to 3 Cell Alkaline, NiCd or NiMH – 1 Cell Li-Ion or Li-Primar y • Solar or Fuel Cell Powered Applic ations • Consumer and Portable Medica l Products • Personal Care Products White or Status LEDs • Smartphones 3 Description The TLV61220 device provides a power-supply solution for products powered by either a single.
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