Datasheet

1
FEATURES
APPLICATIONS
DESCRIPTION
V
IN
1
8
6
7
3 2
9
5
10
4
10 mH
EN
ILIM
SYNC
GND FC
PG
PGND
FB
L
TPS6200x
†
10 mF
V
O
=0.8V
toV
I
PG
0.1 mF
10 mF
V
I
=2V
to5.5V
†
WithV
O
≥1.8 V;C
o
=10 mF,V
O
<1.8V;C
o
=47 mF
0
10
20
30
40
50
60
70
80
90
100
0.1 1 10 100 1000
Efficiency − %
I
O
− LoadCurrent − mA
V
I
=3.6V,
V
O
=2.5V
SYNC=Low
SYNC=High
EFFICIENCY
vs
LOADCURRENT
TPS62000, TPS62001, TPS62003
TPS62004, TPS62005, TPS62006
TPS62007, TPS62008
www.ti.com ........................................................................................................................................... SLVS294E – SEPTEMBER 2000 – REVISED AUGUST 2008
HIGH-EFFICIENCY STEP-DOWN LOW POWER DC-DC CONVERTER
• High-Efficiency Synchronous Step-Down • Low-Noise Operation Antiringing Switch and
Converter With Greater Than 95% Efficiency PFM/PWM Operation Mode
• 2 V to 5.5 V Operating Input Voltage Range • Internal Softstart
• Adjustable Output Voltage Range From 0.8 V • 50- µ A Quiescent Current (TYP)
to V
I
• Available in the 10-Pin Microsmall Outline
• Fixed Output Voltage Options Available in Package (MSOP)
0.9 V, 1 V, 1.2 V, 1.5 V, 1.8 V, 1.9 V, 2.5 V, and
• Evaluation Module Available
3.3 V
• Synchronizable to External Clock Signal up to
1 MHz
• Low-Power CPUs and DSPs
• Up to 600 mA Output Current
• Cellular Phones
• Organizers, PDAs, and Handheld PCs
• Pin-Programmable Current Limit
• MP-3 Portable Audio Players
• High Efficiency Over a Wide Load Current
• Digital Cameras
Range in Power Save Mode
• USB-Based DSL Modems and Other Network
• 100% Maximum Duty Cycle for Lowest
Interface Cards
Dropout
The TPS6200x devices are a family of low-noise synchronous step-down dc-dc converters that are ideally suited
for systems powered from a 1-cell Li-ion battery or from a 2- to 3-cell NiCd, NiMH, or alkaline battery. The
TPS6200x operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V.
Figure 1. Figure 2. Typical Application Circuit for Fixed Output
Voltage Option
1
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.
Copyright © 2000 – 2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.