Datasheet > SP6641AEK-L-3-3/TR

SP6641AEK-L-3-3/TR

更新时间： 2024-11-07 22:58:47

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
13页	131K
描述
IC REG BST 3.3V 1.5A SYNC SOT23

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中文翻译

获取价格

数据手册

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SP6641A/6641B

500mA Alkaline DC/DC Boost Regulator in SOT-23

■ Ultra Low Quiescent Current: 10µA

■ Wide Input Voltage Range: 0.9V to 4.5V

V_BATT

GND

V_OUT

■ 90mA I_OUTat 1.3V Input (SP6641A-3.3V)

■ 500mA I_OUTat 2.6V Input (SP6641B-3.3V)

■ 100mA I_OUTat 2.0V Input (SP6641A-5.0V)

■ 500mA I_OUTat 3.3V Input (SP6641B-5.0V)

■ Fixed 3.3V or 5.0V Output Voltage

■ Up to 87% Efficiency

SP6641

5 Pin SOT-23

SHDN

■ 0.3Ω NFET R_DSon

APPLICATIONS

■ PDA's

■ DSC's

■ CD/MP3 Players

■ Pagers

■ Startup Voltage Guaranteed at 0.9V

■ 0.33A Inductor Current Limit (SP6641A)

■ 1A Inductor Current Limit (SP6641B)

■ Logic Shutdown Control

■ SOT-23-5 Package

■ Digital Cameras

■ Portable Handheld Medical Devices

Now Available in Lead Free Packaging

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 10µA quiescent current, a 0.3Ω N-

channelchargingswitch, 0.9Vinputstartup, anda0.33Aor1.0Ainductorcurrentlimitingfeature.

TheSP6641isofferedina5pinSOT-23packageandprovidesanextremelysmallpowersupply

footprint optimized for portable applications. The SP6641 is preset to 3.3V and can be controlled

by a 1nA active LOW shutdown pin.

0.9V to 4.5V

700

BATT

650

600

550

500

450

400

350

300

250

200

150

100

BATT

®®

GND

SP6641A

SP6641B, 1.0A, 3.3V

SP6641B, 1.0A, 5V

SP6641A, 0.33A, 3.3V

SP6641A, 0.33A, 5V

OUT

SHDN

OUT

+3.3V or 5V

SP6641A 3.3V & 5V: C1 = C2 = 22µF Ceramic, L1 = 22µH CDRH5D28,

1.0

D1 = MBR0520, C3 = Open, R1 = Shorted.

1.5

2.0

2.5

3.0

(V)

3.5

4.0

4.5

SP6641B 3.3V & 5V: C1 = C2 = 100µF POSCAP, L1 = 10µH CDRH5D28,

D1 = ZHCS2000, C3 = 1µF Ceramic, R1 = 10Ω.

Figure 2. Maximum Load Current in Operation

Figure 1. Typical Application Schematic

Rev. 5/26/05, *Patent Pending

SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23

12 3 4 5 6 7...13

中文翻译

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与SP6641AEK-L-3-3/TR相关器件

型号	品牌	获取价格	描述	数据表
SP6641AEK-L-5.0/TR	EXAR	获取价格	Battery Charge Controller, Current-mode, 1.5A, PDSO5, LEAD FREE, SOT-23, 5 PIN
SP6641AEK-L-5-0	EXAR	获取价格	IC REG BST 5V 1.5A SYNC SOT23-5
SP6641AEK-L-5-0/TR	EXAR	获取价格	IC REG BST 5V 1.5A SYNC SOT23-5
SP6641AKEB-3.3	SIPEX	获取价格	Low Noise Evaluation Board
SP6641AKEB-3-3	EXAR	获取价格	EVAL BOARD FOR SP6641A 3.3V
SP6641AKEB-5.0	SIPEX	获取价格	Low Noise Evaluation Board
SP6641B	SIPEX	获取价格	500mA Alkaline DC/DC Boost Regulator in SOT-23
SP6641BEK-3.3	SIPEX	获取价格	Low Noise Evaluation Board
SP6641BEK-3.3/TR	SIPEX	获取价格	500mA Alkaline DC/DC Boost Regulator in SOT-23
SP6641BEK-3.3TR	SIPEX	获取价格	500mA Alkaline DC/DC Boost Regulator in SOT-23

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