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深圳市祥润达电子有限公司
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- 会员年限：4年
- 汪先生
- 手机：13480982554
- 汪先生
- 手机：19925185447
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- 地址：深圳市龙岗区坂田街道马安堂社区不城南路5号坂田所国际中心C栋六层C2-609
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询价相关产品
产品信息
LTC1604
18000
LTC1605
18000
LTC1606
18000
LTC1608
18000
LTC1609
18000
LTC1856
18000
LTC1859
18000
LTC1864
18000
LTC1864IMS8
18000
LTC1865
18000
LTC1867
18000
LTC2202
18000
LTC2203
18000
LTC2203CUK
18000
LTC2203IUK
18000
LTC2204CUK
18000
LTC2204IUK
18000
LTC2205
18000
LTC2207
18000
LTC2208
18000
LTC2206CUK
18000
LTC2206CUK-14
18000
LTC2206IUK
18000
LTC2206IUK-14
18000
LTC2163CUK
18000
LTC2163IUK
18000
LTC2185CUP#PBF
18000
LTC2185IUP#PBF
18000
LTC2209
18000
LTC2215
18000
LTC2216
18000
LTC2217
18000
LTC2272
18000
LTC2273
18000
LTC2274
18000
features
Regulated 3.3-V Output Voltage With up to
100-mA Output Current From a 1.8-V to
3.6-V Input Voltage
Less Than 5-mV(PP) Output Voltage Ripple
Achieved With Push-Pull Topology
Integrated Low-Battery and Power-Good
Detector
Switching Frequency Can Be Synchronized
to External Clock Signal
Extends Battery Usage With up to 90%
Efficiency and 35-μA Quiescent Supply
Current
Easy-to-Design, Low Cost, Low EMI Power
Supply Since No Inductors Are Used
0.05-μA Shutdown Current, Battery is
Isolated From Load in Shutdown Mode
Compact Converter Solution in UltraSmall
10-pin MSOP With Only Four External
Capacitors Required
Evaluation Module Available
(TPS60200EVM-145)
applications
Replaces DC/DC Converters With Inductors
in Battery Powered Applications Like:
− Two Battery Cells to 3.3-V Conversion
− MP3 Portable Audio Players
− Battery-Powered Microprocessor
Systems
− Backup-Battery Boost Converters
− PDA’s, Organizers, and Cordless Phones
− Handheld Instrumentation
− Glucose Meters and Other Medical
Instruments
·
description
The TPS6020x step-up, regulated charge pumps generate a 3.3-V ±4% output voltage from a 1.8-V to 3.6-V
input voltage. The devices are typically powered by two Alkaline, NiCd, or NiMH battery cells and operate down
to a minimum supply voltage of 1.6 V. Continuous output current is a minimum of 100 mA from a 2-V input. Only
four external capacitors are needed to build a complete low-ripple dc/dc converter. The push-pull operating
mode of two single-ended charge pumps assures the low output voltage ripple, as current is continuously
transferred to the output.
Figure 1. Typical Application Circuit
With Low-Battery Warning
OUTPUT
3.3 V, 100 mA
INPUT
1.6 V to 3.6 V
OFF/ON
C1
C2
Co Ci R1
R2
1
2
3
4
5
6
7
8
9
10
R3
Low Battery
Warning
IN
EN
C1−
C1+
LBI
TPS60204
OUT
C2−
C2+
LBO
GND
TPS60204
PEAK OUTPUT CURRENT
vs
INPUT VOLTAGE
150
100
50
0
1.6 2.0 2.4 2.8
200
250
350
3.2 3.6