最新免费av在线观看,亚洲综合一区成人在线,中文字幕精品无码一区二区三区,中文人妻av高清一区二区,中文字幕乱偷无码av先锋

TPS62021 Datasheet

  • TPS62021

  • 采用 QFN-10 封裝的可調(diào)節(jié)、600mA、95% 高效步降轉(zhuǎn)換器，18uA、...

  • 338.63KB

  • 26頁

  • TI

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

TPS62020, TPS62021
www.ti.com
SLVS076B 鈥?JUNE 2003 鈥?REVISED APRIL 2004
600 mA/1.25 MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Up to 95% Conversion Efficiency
Typical Quiescent Current: 18 碌A(chǔ)
Load Current: 600 mA
Operating Input Voltage Range: 2.5 V to 6.0 V
Switching Frequency: 1.25 MHz
Adjustable and Fixed Output Voltage
Power Save Mode Operation at Light load
Currents
Active-Low MODE pin on TPS62021
100% Duty Cycle for Lowest Dropout
Internal Softstart
Dynamic Output Voltage Positioning
Thermal Shutdown
Short-Circuit Protection
10 Pin MSOP PowerPad鈩?Package
10 Pin QFN 3 X 3 mm Package
DESCRIPTION
The TPS62020 is a high efficiency synchronous
step-down dc-dc converter optimized for battery pow-
ered portable applications. This device is ideal for
portable applications powered by a single Li-Ion
battery cell or by 3-cell NiMH/NiCd batteries. With an
output voltage range from 6.0 V down to 0.7 V, the
device supports low voltage DSPs and processors in
PDAs, pocket PCs, as well as notebooks and
subnotebook computers. The TPS62020 operates at
a fixed switching frequency of 1.25 MHz and enters
the power save mode operation at light load currents
to maintain high efficiency over the entire load current
range. For low noise applications, the device can be
forced into fixed frequency PWM mode by pulling the
MODE pin high. The difference between the
TPS62020 and the TPS62021 is the logic level of the
MODE pin. The TPS62021 has an active-low MODE
pin. The TPS62020 supports up to 600-mA load
current.
APPLICATIONS
PDA, Pocket PC and Smart Phones
USB Powered Modems
CPUs and DSPs
PC Cards and Notebooks
xDSL Applications
Standard 5-V to 3.3-V Conversion
Typical Application Circuit (600-mA Output Current)
EFFICIENCY
vs
LOAD CURRENT
V
I
2.5 V to 6 V
C3
10
碌F
TPS62020
2
VIN
3
VIN
1 EN
6
MODE
4
GND
SW
SW
FB 5
PGND 10
9
PGND
8
7
L1
10
碌H
V
O
0.7 V to V
I
/ 600 mA
C4
10
碌F
Efficiency 鈭?%
100
95
90
V
O
= 1.8 V
V
I
= 2.7 V
V
I
= 3.6 V
V
I
= 5 V
Mode = Low
R1
C1
85
80
75
70
65
60
55
50
45
40
0
R2
C2
V
I
= 3.6 V
Mode = High
0.01
0.10
1
10
100
1000
I
L
鈭?Load Current 鈭?mA
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.
PowerPad is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2003鈥?004, Texas Instruments Incorporated

TPS62021 PDF文件相關(guān)型號(hào)

TPS62026,TPS62201,TPS62202,TPS62203,TPS62205

TPS62021相關(guān)型號(hào)PDF文件下載

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！