參數(shù)資料
型號(hào)： SP6641BEK-5.0/TR
廠商： EXAR CORP
元件分類： 穩(wěn)壓器
英文描述： 1.5 A BATTERY CHARGE CONTROLLER, PDSO5
封裝： SOT-23, 5 PIN
文件頁數(shù)： 1/13頁
文件大小： 131K
代理商： SP6641BEK-5.0/TR
1
Rev. 5/26/05,
*Patent Pending
SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23
Copyright 2002 Sipex Corporation
DESCRIPTION
The SP6641 is an ultra-low quiescent current, high efficiency, DC-DC boost converter designed
for single and dual cell alkaline, or Li-ion battery applications found in PDA’s, MP3 players, and
other handheld portable devices. The SP6641 features a 10A quiescent current, a 0.3 N-
channel charging switch, 0.9V input startup, and a 0.33A or 1.0A inductor current limiting feature.
The SP6641 is offered in a 5 pin SOT-23 package and provides an extremely small power supply
footprint optimized for portable applications. The SP6641 is preset to 3.3V and can be controlled
by a 1nA active LOW shutdown pin.
500mA Alkaline DC/DC Boost Regulator in SOT-23
■ Ultra Low Quiescent Current: 10A
■ Wide Input Voltage Range: 0.9V to 4.5V
■ 90mA IOUT at 1.3V Input (SP6641A-3.3V)
■ 500mA IOUT at 2.6V Input (SP6641B-3.3V)
■ 100mA IOUT at 2.0V Input (SP6641A-5.0V)
■ 500mA IOUT at 3.3V Input (SP6641B-5.0V)
■ Fixed 3.3V or 5.0V Output Voltage
■ Up to 87% Efficiency
■ 0.3 NFET RDSon
■ Startup Voltage Guaranteed at 0.9V
■ 0.33A Inductor Current Limit (SP6641A)
■ 1A Inductor Current Limit (SP6641B)
■ Logic Shutdown Control
■ SOT-23-5 Package
VOUT
GND
SHDN
VBATT
LX
SP6641
5 Pin SOT-23
1
2
3
5
4
APPLICATIONS
■ PDA's
■ DSC's
■ CD/MP3 Players
■ Pagers
■ Digital Cameras
■ Portable Handheld Medical Devices
SP6641A/6641B
Figure 1. Typical Application Schematic
Figure 2. Maximum Load Current in Operation
I OUT
(mA)
0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
VIN (V)
SP6641B, 1.0A, 3.3V
SP6641B, 1.0A, 5V
SP6641A, 0.33A, 3.3V
SP6641A, 0.33A, 5V
GND
LX
VBATT
SHDN
L1
0.9V to 4.5V
U1
SP6641A
VOUT
SHDN
VBATT
C2
VOUT
+3.3V or 5V
D1
1
2
3
C1
5
4
C3
R1
SP6641A 3.3V & 5V: C1 = C2 = 22F Ceramic, L1 = 22H CDRH5D28,
D1 = MBR0520, C3 = Open, R1 = Shorted.
SP6641B 3.3V & 5V: C1 = C2 = 100F POSCAP, L1 = 10H CDRH5D28,
D1 = ZHCS2000, C3 = 1F Ceramic, R1 = 10.
Now Available in Lead Free Packaging
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP6641BEK-L-3-3 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 500mA Alkaline DC/DC Boost Regulator RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
SP6641BEK-L-3-3/TR 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 100mA Alkaline DC/DC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
SP6641BEK-L-5-0 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 500mA Alkaline DC/DC Boost Regulator RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
SP6641BEK-L-5-0/TR 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 500mA Alkaline DC/DC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
SP6641BKEB 功能描述:電源管理IC開發(fā)工具 500mA Alkaline DC/DC Boost Regulator RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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