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SP6655ER/TR

Description
High Efficiency 400mA Synchronous Buck Regulator Ideal for portable designs powered with Li Ion battery
CategoryPower/power management    The power supply circuit   
File Size180KB,16 Pages
ManufacturerSIPEX
Websitehttp://www.sipex.com/
Download Datasheet Parametric Compare View All

SP6655ER/TR Overview

High Efficiency 400mA Synchronous Buck Regulator Ideal for portable designs powered with Li Ion battery

SP6655ER/TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerSIPEX
package instruction3 X 3 MM, MO-229VEED-5, DFN-10
Reach Compliance Codeunknow
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
Control TechnologyPULSE FREQUENCY MODULATION
Maximum input voltage5.5 V
Minimum input voltage2.7 V
Nominal input voltage3.6 V
JESD-30 codeS-XDSO-N10
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals10
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current2 A
Package body materialUNSPECIFIED
encapsulated codeHVSON
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)240
Certification statusNot Qualified
Maximum seat height1 mm
surface mountYES
Switch configurationBUCK
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3 mm
®
SP6655
Ideal for portable designs powered with Li Ion battery
High Efficiency 400mA Synchronous Buck Regulator
FEATURES
98% Efficiency Possible
Small 10-Pin DFN Package
Ultra-low 20µA Quiescent Current
625mA Inductor Peak Current Limit
Guaranteed Minimum 400mA Output
Current
2.7V to 5.5V Input Voltage Range
Output Adjustable Down to 1.0V
100% Duty Ratio Low Dropout
Operation
80µA Light Load Quiescent Current in
Dropout
P
VIN
VIN
BLON
D1
D0
1
2
3
4
5
10
LX
GND
SP6655
10 Pin DFN
9
P
8
GND
7
V
OUT
6
FB
Now Available in Lead Free Packaging
APPLICATIONS
Cell Phones
PDA's
DSC's
MP3 Players
USB Devices
Point of Use Power
DESCRIPTION
The SP6655 is a 400mA synchronous buck regulator which is ideal for portable applications that
use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6655’s proprietary control loop, 20µA light
load quiescent current, and 0.3Ω power switches provide excellent efficiency across a wide range
of output currents. As the input battery supply decreases towards the output voltage the SP6655
seamlessly transitions into 100% duty ratio operation further extending useful battery life. The
SP6655 is protected against overload and short circuit conditions with a precise inductor peak
current limit. Other features include programmable under voltage lockout and low battery
detection, externally programmed output voltage down to 1.0V, logic level shutdown control, and
140°C over temperature shutdown.
TYPICAL APPLICATION SCHEMATIC
2.7V to 5.5V Input
VI
L1
10µH
10Ω
R
VIN
CV
IN
1µF
V
OUT
400mA
VO
C
IN
10µF
1M
SP6655
P
VIN
V
IN
BLON
LX
P
GND
GND
C
OUT
10µF
CF
R
F
22pF
BLON
D1
D0
D1
D0
V
OUT
FB
R
I
200K
Date: 7/12/04
SP6655 High Efficiency 400mA Synchronous Buck Regulator
© Copyright 2004 Sipex Corporation
1

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