TPS62007 Datasheet, PDF (1/25 Pages) Texas Instruments – HIGH-EFFICIENCY STEP-DOWN LOW POWER DC-DC CONVERTER

TPS62000, TPS62001, TPS62002, TPS62003
TPS62004, TPS62005, TPS62006, TPS62007, TPS62008
HIGHĆEFFICIENCY STEPĆDOWN LOW POWER DCĆDC CONVERTER
SLVS294C − SEPTEMBER 2000 − REVISED SEPTEMBER 2003
FEATURES
D High-Efficiency Synchronous Step-Down
Converter With Greater Than 95%
Efficiency
D 2 V to 5.5 V Operating Input Voltage Range
D Adjustable Output Voltage Range From
0.8 V to V_I
D 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
D Synchronizable to External Clock Signal up
to 1 MHz
D Up to 600 mA Output Current
D Pin-Programmable Current Limit
D High Efficiency Over a Wide Load Current
Range in Power Save Mode
D 100% Maximum Duty Cycle for Lowest
Dropout
D Low-Noise Operation Antiringing Switch
and PFM/PWM Operation Mode
D Internal Softstart
D 50-µA Quiescent Current (TYP)
D Available in the 10-Pin Microsmall Outline
Package (MSOP)
D Evaluation Module Available
D Available in a Ultra-Small, 12-Pin
NanoStarE (Wafer Chip-Scale) Package
APPLICATIONS
D Low-Power CPUs and DSPs
D Cellular Phones
D Organizers, PDAs, and Handheld PCs
D MP-3 Portable Audio Players
D Digital Cameras
D 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
SYNC = Low
60
50
SYNC = High
40
30
20
10
0
0.1
VI = 3.6 V,
VO = 2.5 V
1
10
100
IO − Load Current − mA
Figure 1
1000
V_I = 2 V
to 5.5 V
10 µF
1 _VIN
L ^{9 10 µH}
8 _EN
FB ⁵
TPS6200x
6 _ILIM
10
PGND
7 _SYNC
PG ⁴
GND FC
3
2
0.1 µF
V_O = 0.8 V
to V_I
10 µF ^†
PG
† _{With VO ≥1.8 V; Co = 10 µF, VO <1.8 V; Co = 47 µF}
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