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TPS62001

更新时间： 2024-11-22 22:52:55
品牌 Logo 应用领域
德州仪器 - TI 转换器功效DC-DC转换器
页数 文件大小 规格书
21页 308K
描述
HIGH-EFFICIENCY STEP-DOWN LOW POWER DC-DC CONVERTER

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TPS62001 数据手册

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TPS62000, TPS62001, TPS62002, TPS62003  
TPS62004, TPS62005, TPS62006, TPS62007, TPS62008  
HIGH-EFFICIENCY STEP-DOWN LOW POWER DC-DC CONVERTER  
SLVS294B – SEPTEMBER 2000 – REVISED JUNE 2002  
Low-Noise Operation Antiringing Switch  
and PFM/PWM Operation Mode  
features  
High-Efficiency Synchronous Step-Down  
Converter With Greater Than 95%  
Internal Softstart  
Efficiency  
50-µA Quiescent Current (TYP)  
2 V to 5.5 V Operating Input Voltage Range  
Adjustable Output Voltage Range From  
Available in the 10-Pin Microsmall Outline  
Package (MSOP)  
0.8 V to V  
Evaluation Module Available  
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  
applications  
Low-Power CPUs and DSPs  
Cellular Phones  
Synchronizable to External Clock Signal up  
to 1 MHz  
Organizers, PDAs, and Handheld PCs  
MP-3 Portable Audio Players  
Digital Cameras  
Up to 600 mA Output Current  
Pin-Programmable Current Limit  
High Efficiency Over a Wide Load Current  
Range in Power Save Mode  
USB-Based DSL Modems and Other  
Network Interface Cards  
100% Maximum Duty Cycle for Lowest  
Dropout  
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  
10 µH  
V = 2 V  
I
to 5.5 V  
1
8
V = 0.8 V  
O
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
9
5
V
L
FB  
IN  
to V  
I
10 µF  
EN  
TPS6200x  
†
SYNC = Low  
10 µF  
10  
4
6
7
ILIM  
PGND  
SYNC = High  
SYNC  
GND  
PG  
PG  
FC  
3
2
0.1 µF  
V = 3.6 V,  
I
O
V
= 2.5 V  
†
With V ≥1.8 V; C = 10 µF, V <1.8 V; C = 47 µF  
O
o
O
o
0.1  
1
10  
100  
1000  
I
O
– Load Current – mA  
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.  
Copyright 2002, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...21

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