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SP6139EU-L/TR Datasheet

  • SP6139EU-L/TR

  • Wide Input, 1.3MHz Synchronous PWM Controller

  • 13頁

  • SIPEX

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上傳產品規(guī)格書

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廬
Advanced
SP6139
Wide Input, 1.3MHz Synchronous PWM Controller
FEATURES
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
2.5V to 20V Step Down Achieved Using Dual Input
Small 10-Pin MSOP Package
Up to 15A Ouput Capability
Highly Integrated Design, Minimal Components
UVLO Detects Both V
CC
and V
IN
Short Circuit Protection with Auto-Restart
On-Board 1.5鈩?sink (2鈩?source) NFET Drivers
Programmable Soft Start
Fast Transient Response
High Efficiency: Greater than 94% Possible
A Synchronous Start-Up into a Pre-Charged Output
V
CC
1
GL
2
GND
3
V
FB
4
COMP
5
10
BST
SP6139
10 Pin MSOP
9
GH
8
SWN
7
SS
6
UVIN
Now Available in Lead Free Packaging
APPLICATIONS
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DSL Modems
鈻?/div>
Set-Top Boxes
鈻?/div>
12V V
IN
Point of Load Apps.
DESCRIPTION
The SP6139 is a synchronous step-down switching regulator controller optimized for high efficiency. The part is
designed to be especially attractive for dual supply, 12V step down with 5V used to power the controller. This lower V
CC
voltage minimizes power dissipation in the part. The SP6139 is designed to drive a pair of external NFETs using a fixed
1.3MHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output
short circuit protection. The SP6139 is available in the cost and space saving 10-pin MSOP
.
TYPICAL APPLICATION CIRCUIT
VIN
12V
C1
22碌F
16V
Si4922DY
8.3A, 18m鈩?/div>
1
8 7
V
CC
= 5V @ 30mA
QT
2
GND
C1, C2
Ceramic
1210
X5R
RLF
3.0,5%
CBST
0.1碌F
DBST
MBR0530
1
VCC
GL
L1 SD25-2R2
2.2碌H @ 2.8A
DCR=31m鈩?/div>
U1
BST 10
GH 9
R5
Bead
QB
4
5 6
R3
150k, 1%
UV
IN
R4
100k, 1%
C
VCC
10碌F
6.3V
C
VCC
Ceramic
8050
X5R
GND 3
2
3
4
SP6139
RZ3
2.26k, 1%
Si4922DY
8.3A, 18m鈩?/div>
V
OUT
鈮?/div>
VIN
3.3V @ 2A
R1
68.1k, 1%
GND
VFB
COMP
SWN 8
SS 7
UVIN 6
C3
47碌F
6.3V
C4
47碌F
6.3V
0.8V
5
SS
CSS
47nF
3
CZ3
220pF
CZ2
1.2nF
CF1
100pF
RZ2
12.7k, 1%
CP1
39pF
GND2
C3, C4
Ceramic
1210
X5R
R2
21.5k, 1%
Date: 12/20/04
SP6139 Wide Input, 1.3MHz Synchronous PWM Controller
漏 Copyright 2004 Sipex Corporation
1

SP6139EU-L/TR 產品屬性

  • Exar

  • 開關變換器、穩(wěn)壓器與控制器

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