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參數(shù)資料
| 型號(hào)： | AIC1562CS |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | High-Efficiency, Bootstrapped DC/DC Converter |
| 中文描述： | 高效率，自舉直流/直流轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大?。?/td> | 256K |
| 代理商： | AIC1562CS |
AIC1562
High-Efficiency, Bootstrapped DC/DC Converter
Analog Integrations Corporation
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
www.analog.com.tw
DS-1562-00 Jan 30, 01
TEL: 886-3-5772500
FAX: 886-3-5772510
1
FEATURES
3V to 20V Input Voltage Operation.
Internal 800mA Switch.
Bootstrapped Driver for N-Channel MOSFET.
High Efficiency (up to 90%).
Fast Transient Response.
Internal
±
2% Reference.
Low Quiescent Current at 1.6mA.
Frequency Operation from 200Hz to 200KHz.
APPLICATIONS
CPU Power Supplies for Mother Boards.
DC/DC Converters for CPU VRMs.
Step-Down DC-DC Converter Module.
DESCRIPTION
The AIC1562 is a high performance monolithic
DC/DC
converter
drive
bootstrapping capability, designed specifically for
driving N-channel MOSFET to achieve maximum
possible power conversion efficiency. The device
consists of an internal temperature compensated
reference, comparator, controlled duty cycle
oscillator, bootstrapped driver and a 800mA output
switch. Working with the AIC1741, a low power
adjustable regulator, the AIC1562 works at 100%
duty cycle under heavy load transient conditions to
minimize transient response time, making it an idea
precision switching power solution to stringent
requirements on computer mother boards.
IC
with
output-
TYPICAL APPLICATION CIRCUIT
C3
0.1
μ
F
D2
1N4148
+
+
V
IN
5V
V
OUT
: 2.5V~3.5V/10A
12V
B
AIC1741
VOUT
GND
FB
VIN
1000
μ
F/6.3Vx2
C8, C9
M
Q
2
Q2
BST
SE
AIC1562
VCC
SC
C1
47
μ
F
+
P5
MICROPROCESSOR
CPU
1000
μ
F/6.3V
x5
C13
C12
0.1
μ
F
x2
1
μ
F+
FB
GND
R8
10K
C2
220pF
R2
24K
TC
0.022
μ
F
C4
R1
1K
D3
D1
L1
7.5
μ
F
R7
470
C5
0.1
μ
F
R8
1K
R9
1K
R10
1N4148
Z1
5.1V
C11
0.1
μ
F
x2
C10
C11, C12: Ceramic Capacitor
L1: Iron Powder Core
V
OUT
= (1+R10/1K)x1.235V
CPU Power Supply for P5 Mother Board
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