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SP6133ER1/TR Datasheet

  • SP6133ER1/TR

  • Synchronous Buck Controller

  • 20頁

  • SIPEX

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SP6133
TM
Synchronous Buck Controller
FEATURES
鈻?/div>
5V to 24V Input step down converter
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Up to 30A output capability
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Highly integrated design, minimal components
鈻?/div>
UVLO Detects Both V
CC
and V
IN
鈻?/div>
Overcurrent circuit protection with auto-restart
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Power Good Output, ENABLE Input
鈻?/div>
Maximum Controllable Duty Cycle Ratio up to 92%
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Wide BW amp allows Type II or III compensation
鈻?/div>
Programmable Soft Start
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Fast Transient Response
鈻?
High Efficiency: Greater than 95% possible
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Available in Lead Free, RoHS Compliant
6-Pin QFN package
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External Driver Enable/Disable
鈻?/div>
U.S. Patent #6,922,04
UV
IN
BST
13
12 GH
11
10
9
8
SWN
ISP
ISN
V
CC
16
GL
PGND
GND
1
2
3
4
5
15
SP6133
16 Pin QFN
3mm x 3mm
V
FB
6
V
IN
14
7
COMP
EN
PWRGD
VIN
10-15V
GND
3.3V
0-10A
GND
DESCRIPTION
The SP633 is a synchronous step-down switching regulator controller optimized for high
efficiency. The part is designed to be especially attractive for single supply step down con-
version from 5V to 24V. The SP633 is designed to drive a pair of external NFETs using a
fixed 300 kHz frequency, PWM voltage mode architecture. Protection features include UVLO,
thermal shutdown, output short circuit protection, and overcurrent protection with auto restart.
The device also features a PWRGD output and an enable input. The SP633 is available in
a space saving 6-pin QFN and offers excellent thermal performance.
TYPICAL APPLICATION CIRCUIT
C5
0.1uF
DBST
CVCC
10uF
BAT54WS
VIN
VCC
R3 10K
POWERGOOD
NC
PWRGD
UVIN
EN
ENABLE
BST
GH
SWN
SC5018-2R7M
2.7uH, 15A, 4.1mOhm
MB, Si4320DY
4 mOhm, 30V
CBST
0.1uF
MT, Si4394DY
9.75 mOhm, 30V
C1
22uF
C2
22uF
VOUT
C3
100uF
C4
100uF
SP6133
GL
RS1
5.11K
RS2
5.11K
GND
PGND
ISP
ISN
CSP
6.8nF
CSS
47nF
RZ3
1K
CS
0.1uF
COMP
CP1
39 pF
VFB
SS
R1
68.1K, 1%
CZ3
560pF
CF1
22pF
CZ2
1500pF
RZ2
23.2K
R2
21.5K, 1%
Note: Die attach paddle is internally connected to GND.
Oct 24-06 Rev L
SP633 Synchronous Buck Controller
漏 2006 Sipex Corporation

SS

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