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參數(shù)資料
| 型號： | AIC1596ACM |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | 3A STEP-DOWN PWM REGULATOR |
| 中文描述： | 第3A降壓脈寬調(diào)制調(diào)節(jié)器 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 61K |
| 代理商： | AIC1596ACM |
AIC1596
3A STEP-DOWN PWM REGULATOR
SPEC NO: DS-1596-P1 03/23/00
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510
www.analog.com.tw
3
ELECTRICAL CHARACTERISTICS
(T
J
=25
°
C, V
IN
=18V)
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
Input Voltage
4.5
36
V
AIC1596-25 (V
IN
> 4.5V)
2.5
V
AIC1596-33 (V
IN
> 4.5V)
3.3
V
AIC1596-50 (V
IN
> 7.0V )
5.0
V
Fixed Output Voltage
AIC1596-12 (V
IN
> 15V )
12.0
V
Feedback Voltage
AIC1596 Adjustable
1.25
V
Output Voltage Regulation
4
%
Quiescent Current
Internal switch off
1
5
mA
Shutdown Quiescent Current
SHDN = 5V (OFF)
80
μ
A
Logic Input High
(Regulator OFF)
2
V
Logic Input Low
(Regulator ON )
0.8
V
Oscillator Frequency
AIC1596A series
150
Oscillator Frequency
AIC1596B series
300
KHz
Output Current Limit
3.0
A
Over Voltage Protection
120
%
Maximum Duty Cycle
100
%
Efficiency
Vo=5V , Io=3A
90
%
!
PIN DESCRIPTIONS
PIN 1: IN Supply voltage input for the IC
switching regulator. A suitable input
bypass capacitor must be present at
this pin to minimize voltage transients
and to supply the switching currents
needed by the regulator.
PIN 2:OUT
Internal switch. The voltage at this pin
switches between (V
IN
-V
SAT
) and ap-
proximately –0.5V, with a duty cycle of
approximately V
OUT
/V
IN
.
PIN 3: GND
Ground requires a short, low noise
connection to ensure good load
regulation.
PIN 4: FB
Feedback input for fixed-output or
adjustable-output version. Connect di-
rectly to output for fixed operation
version or to a resistor divider for ad-
justable operation versions.
PIN 5: SHDN Allows the switching regulator circuit
to be shutdown using logic level sig-
nals thus dropping the total input sup-
ply current to approximately 80
μ
A.
Drive it high to disable the reference,
control circuitry and internal switches.
Drive low or connect to GND for nor-
mal operation.
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| AIC1596B-25CM | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:3A STEP-DOWN PWM REGULATOR |
| AIC1596B-25CT | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:3A STEP-DOWN PWM REGULATOR |
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