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參數(shù)資料
| 型號： | SP6681EU |
| 英文描述： | High Efficiency Boost Charge Pump Regulator |
| 中文描述： | 高效率升壓充電泵穩(wěn)壓器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 125K |
| 代理商： | SP6681EU |
1
Rev:A Date: 11/20/03
SP6681 High Efficiency Boost Charge Pump Regulator Copyright 2002 Sipex Corporation
P
High Efficiency Boost Charge Pump Regulator
SP6681
FEATURES
■
Ideal for Li Ion or 3V to 5V Conversion
■
Low Profile, Inductorless Regulator
■
Up To 96% Power Efficiency
■
+2.7V to +5.5V Input Voltage Range
■
5.0V, 50mA Output, 4% Accuracy
■
Low EMI Design
■
Low Quiescent Current: 175
μ
A
■
Low Shutdown Current:
4
μ
A
■
Optional External Clock: 32.768kHz
■
Thermal Shutdown Protection
■
Programmable Frequencies:
8.192kHz, 32.768kHz, or 262.14kHz
■
Internal Oscillator: 16kHz or 130kHz,
when CLK Pin Is Held High
■
Ultra small 10-Pin MSOP Package
DESCRIPTION
The SP6681
is a charge pump ideal for converting a +3.6V Li-Ion battery input to a +5.0V
regulated output. An input voltage range of +2.7V to +5.5V is converted to a regulated output
of 5.0V. The SP6681
device will operate at three different switching frequencies correspond-
ing to three different output resistances and load current ranges. An external 32.768kHz
nominal clock signal is used to produce three synchronized pump frequencies through the use
an internal phase lock loop to drive the charge pump. Two control inputs can adjust the internal
pump frequency on the fly to 8.192kHz (f
/ 4), 32.768kHz (f
x 1), or 262.14kHz (f
x 8). The charge pump configuration dynamically changes to optimize power efficiency. At
low input voltages the charge pump doubles the input while at higher inputs the output is 1.5
times the input. The SP6681 can deliver high power efficiencies up to 96% with low quiescent
currents from 175
μ
A to 800
μ
A. The SP6681
is offered in a 10-Pin
μ
SOIC package.
V
OUT
C/4
Cx8
CLK
GND
SP6681
8
CF1P
CF1N
9
CF2P
CF2N
4.7
μ
F
2.2
μ
F
2
10
7
1
6
4
5
3
Lithi+3.6V
Battery
+5.0V output
V
IN
2.2
μ
F
2.2
μ
F
*All Capacitors Are Ceramic
APPLICATIONS
■
GSM SIM Card Power Supplies
■
3V to 5V Boost Applications
■
Li Ion to 5.0V Boost Applications
■
White LED Driver
■
Smart Card Readers
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP6682 | High Efficiency Charge Pump Regulator for White LEDs |
| SP6682ER | High Efficiency Charge Pump Regulator for White LEDs |
| SP6682EU | High Efficiency Charge Pump Regulator for White LEDs |
| SP6682UEB | Evaluation Board Manual |
| SP6683 | High Power LED Driver for Parallel Configuration |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6681EU/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency Boost Charge Pump Regulator |
| SP6682 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency Charge Pump Regulator for White LEDs |
| SP6682_06 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency Charge Pump Regulator for White LEDs |
| SP6682EB | 功能描述:電源管理IC開發(fā)工具 Eval Board for SP6682 Series RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| SP6682ER | 制造商:Exar Corporation 功能描述:Driver, Other |
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