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參數(shù)資料
| 型號： | SP7655 |
| 英文描述： | Wide Input Voltage Range 8A, 300kHz, Buck Regulator |
| 中文描述： | 寬輸入電壓范圍8A條，300kHz的降壓穩(wěn)壓器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 121K |
| 代理商： | SP7655 |
1
Date: 08/17/04
SP7655 Wide Input Voltage Range 8A, 300kHz, Buck Regulator Copyright 2004 Sipex Corporation
SP7655
FEATURES
■
2.5V to 28V Step Down Achieved Using Dual Input
■
Output Voltage down to 0.8V
■
8A Output Capability
■
Built in Low R
DSON
Power Switches (15 m
typ)
■
Highly Integrated Design, Minimal Components
■
300 kHz Fixed Frequency Operation
■
UVLO Detects Both V
CC
and V
IN
■
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
■
Asynchronous Start-Up into a Pre-Charged Output
■
Small 7mm x 4mm DFN Package
Wide Input Voltage Range 8A, 300kHz, Buck Regulator
The SP7655 is a synchronous step-down switching regulator optimized for high efficiency. The part is designed to be
especially attractive for dual supply, 12V or 24V distributed power systems step down with 5V used to power the
controller. This lower V
CC
voltage minimizes power dissipation in the part and is used to drive the top switch. The SP7655
is designed to provide a fully integrated buck regulator solution using a fixed 300kHz frequency, PWM voltage mode
architecture. Protection features include UVLO, thermal shutdown and output short circuit protection. The SP7655 is
available in the space saving DFN package
.
Advanced
TYPICAL APPLICATION CIRCUIT
Now Available in Lead Free Packaging
DESCRIPTION
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TOP VIEW
Heatsink Pad 1
Connect to Lx
Heatsink pad 2
Connect to GND
Heatsink pad 3
Connect to VIN
P
GND
P
GND
GND
V
FB
COMP
UVIN
GND
SS
V
IN
LX
LX
LX
LX
V
CC
GND
GND
GND
BST
NC
LX
LX
LX
DFN PACKAGE
7mm x 4mm
SP7655
P
GND
V
IN
V
IN
V
IN
16V
16V
CBST
68,00pF
L1
2.2uH, Irate=8A
C1
22uF
CVCC
U1
SP7655
PGND
1
PGND
2
PGND
3
GND
4
VFB
5
COMP
6
UVIN
7
GND
8
SS
9
VIN
10
VIN
11
VIN
12
VIN
13
LX
14
LX
15
LX
16
NC
17
BST
18
GND
19
GND
20
GND
21
VCC
22
LX
23
LX
24
LX
25
LX
26
DBST
47nF
CP1
22pF
0-6A
68.1k,1%
RSET
21.5k,1%
(note 2)
GND
6.3V
C4
22uF
Notes:
1. U1 Bottom-Side Layout should
has three contacts isolated from
one another Vin SWNODE and GND
2. RSET=54.48/(Vout-0.8V) (KOhm)
12V
VIN
SD101AWS
7.15k,1%
VOUT
150pF
CZ2
1,000pF
RZ2
15k,1%
100pF
fs=300Khz
ENABLE
+5V VCC
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SP7655_05 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP7655_07 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Wide Input Voltage Range, 8Amp 300kHz, Buck Regulator |
| SP7655EB | 功能描述:電源管理IC開發(fā)工具 Eval Board for SP7655 Series RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| SP7655ER | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP7655ER/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Wide Input Voltage Range, 8Amp 300kHz, Buck Regulator |
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