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SP7662ER/TR

Description
12 A SWITCHING REGULATOR, 345 kHz SWITCHING FREQ-MAX, DSO26
CategoryPower/power management    The power supply circuit   
File Size950KB,19 Pages
ManufacturerSIPEX
Websitehttp://www.sipex.com/
Download Datasheet Parametric Compare View All

SP7662ER/TR Overview

12 A SWITCHING REGULATOR, 345 kHz SWITCHING FREQ-MAX, DSO26

SP7662ER/TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
package instruction7 X 4 MM, DFN-26
Reach Compliance Codeunknow
Other featuresALSO OPERATES WITH 3V TO 22V SUPPLY
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage5.5 V
Minimum input voltage4.5 V
Nominal input voltage5 V
JESD-30 codeR-XDSO-N26
JESD-609 codee0
length7 mm
Humidity sensitivity level3
Number of functions1
Number of terminals26
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum output current12 A
Package body materialUNSPECIFIED
encapsulated codeHVSON
Package shapeRECTANGULAR
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
Maximum switching frequency345 kHz
Temperature levelAUTOMOTIVE
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width4 mm
Base Number Matches1
SP7662
Wide Input Voltage Range
12A, 300kHz, Buck Regulator
FEATURES
4.75V to 22V Input Voltage Range using Single Supply
3V to 22V Input Voltage Range using Dual Supply
±% 0.8V Reference
2A Output Capability
Current Limiting using Inductor DCR
Built in Low R
DS(ON)
Power Switches
300 kHz Fixed Frequency Operation
Over Temperature Protection
Short Circuit Protection with Auto-Restart
Wide BW Amp Allows Type II or III Compensation
Programmable Soft Start
Fast Transient Response
High Efficiency: Greater than 95%
Possible
Nonsynchronous Start-Up into a Pre-Charged Output
Available in RoHS Compliant, Lead Free Packaging:
Small 7mm x 4mm DFN
U.S. Patent #6,922,04
LX
LX
LX
26
25
24
BOTTOM VIEW
Heatsink Pad 1
Connect to Lx
PowerBlox
SP7662
TM
DFN PACKAGE
7mm x 4mm (Option 2)
1
P
GND
2 P
GND
3 P
GND
4
P
GND
LX 23
V
CC
2 2
UV
IN
21
GND 20
GND 19
V
IN
18
BST 17
LX 16
LX 15
LX 14
Heatsink Pad 3
Connect to V
INP
Pin 29
Heatsink Pad 2
Connect to GND
Pin 28
Pin 27
5 GND
6 V
FB
7 COMP
8
SS
9 GND
10 ISN
11 ISP
12 SWN
13 VINP
DESCRIPTION
The SP7662 is a synchronous step-down switching regulator optimized for high efficiency. The part is designed
for use with a single 4.75V to 22V single supply or 3V to 22V input if an external Vcc is provided. The SP7662 pro-
vides a fully integrated buck regulator solution using a fixed 300 kHz frequency, PWM voltage mode architecture.
Protection features include UVLO, thermal shutdown, output current limit and short circuit protection. The SP7662
is available in the space saving DFN package
.
5
4
3
TYPICAL APPLICATION CIRCUIT
2

VIN
12Vin (9.6V - 16V)

D

VOUT
LX
28
27
C3
22uF

C2
22uF
C
22uF
L, SC508-2R7M
2.7uH, 4. mOhm
R3
5.k
C4
R9
ISP
3.30V, 0-12A
R4
5.k

3
D
GND PAD
GND
CZ2
C
2
SWN PAD

VFB
2
3
4
5
6
PGND
PGND
PGND
PGND
GND
VFB
COMP
SS
GND
ISN
ISP
LX
LX
26
25
24
23
22
2
20
9
8
7
6
5
4
NC
0.uF
6.9k
ISN
VFB
RZ3
453
R
0k
C5
C6
00uF 00uF

4
RZ2
4.02k
U
SP7662
LX
LX
VCC
UVIN
GND
GND
VIN
BST
LX
CZ3
2200pF
R2
3.6k
0nF
CVCC
4.7uF
CP 00pF
CSS
47nF
GND
C
7
8
9
0

CF
00pF
VIN PAD
C9 6.8nF
B
2
3
RBST
5.
22nF
CBST
SWN
VIN
LX
LX
SD0AWS
DBST
B
ISN
ISP
LX
29
Rs
 Ohm
Cs
2.2nF
LX
Rs2
 Ohm
Cs2
2.2nF
Mar -07 Rev AJ
A
SP7662 Wide Input Voltage Range 2A, 300kHz Buck Regulator
© 2007 Sipex Corporation
A


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