TPS62000, TPS62001, TPS62002, TPS62003
TPS62004, TPS62005, TPS62006, TPS62007, TPS62008
HIGH EFFICIENCY STEP DOWN LOW POWER DC DC CONVERTER
SLVS294C − SEPTEMBER 2000 − REVISED SEPTEMBER 2003
FEATURES
D
Low-Noise Operation Antiringing Switch
D
D
D
D
D
and PFM/PWM Operation Mode
Internal Softstart
50-µA Quiescent Current (TYP)
Available in the 10-Pin Microsmall Outline
Package (MSOP)
Evaluation Module Available
Available in a Ultra-Small, 12-Pin
NanoStarE (Wafer Chip-Scale) Package
D
High-Efficiency Synchronous Step-Down
D
D
D
D
D
D
D
D
Converter With Greater Than 95%
Efficiency
2 V to 5.5 V Operating Input Voltage Range
Adjustable Output Voltage Range From
0.8 V to V
I
Fixed Output Voltage Options Available in
0.9 V, 1 V, 1.2 V, 1.5 V, 1.8 V, 1.9 V, 2.5 V, and
3.3 V
Synchronizable to External Clock Signal up
to 1 MHz
Up to 600 mA Output Current
Pin-Programmable Current Limit
High Efficiency Over a Wide Load Current
Range in Power Save Mode
100% Maximum Duty Cycle for Lowest
Dropout
APPLICATIONS
D
D
D
D
D
D
Low-Power CPUs and DSPs
Cellular Phones
Organizers, PDAs, and Handheld PCs
MP-3 Portable Audio Players
Digital Cameras
USB-Based DSL Modems and Other
Network Interface Cards
description
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.
EFFICIENCY
vs
LOAD CURRENT
100
90
80
70
Efficiency − %
60
50
40
30
20
10
0
0.1
VI = 3.6 V,
VO = 2.5 V
1
10
100
IO − Load Current − mA
1000
SYNC = High
7
10
µF
8
V
I
= 2 V
to 5.5 V
1
V
IN
L
9
10
µH
V
O
= 0.8 V
to V
I
†
SYNC = Low
6
EN
FB
5
10
µF
10
4
TPS6200x
ILIM
SYNC
GND
3
PGND
PG
FC
2
0.1
µF
PG
† With VO
≥1.8
V; Co = 10
µF,
VO <1.8 V; Co = 47
µF
Figure 1
Figure 2. Typical Application Circuit for Fixed
Output Voltage Option
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 Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2002−2003, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
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