参数资料
型号: AP2004SL-U
厂商: Diodes Inc
文件页数: 5/8页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 8-SOIC
标准包装: 100
PWM 型: 控制器
输出数: 1
频率 - 最大: 300kHz
占空比: 90%
电源电压: 3.6 V ~ 27 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -20°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
AP2004
PWM BUCK CONTROLLER
Electrical Characteristics
Output section
(Continued) (T A = 25oC, V CC = 6V, f = 200 Khz)
Symbol
Parameter
Conditions
Min
Typ.
Max
Unit
I LEAK
I DRV
Leakage current
Sink current
Source current
V O = 25V
V IN = 20V
V IN = 20V
200
200
10
μA
mA
mA
V SAT
I SC
Output saturation voltage
Short-circuit output current
I O = 10 mA
V O = 6V
1.0
120
1.5
V
mA
PWM comparator
Symbol
V T0
Parameter
Input threshold voltage at f = 10 KHz CT
Conditions
Min
Typ.
0.6
Max
0.7
Unit
V
V T100
(COMP)
Maximum duty cycle
1.2
1.3
V
Total device
Symbol
I CCA
Parameter
Average supply current
Conditions
C T = 270pF
Min
Typ.
6
Max
10
Unit
mA
Soft Start
Symbol
Parameter
Conditions
Min
Typ.
Max
Unit
V SS
I SS
Soft-start Voltage
Constant Charge Current
2.3
20
V
μA
Typical Application Circuit
R3 1K~30K
Vcc = 12V
C2
10nF
Optional
Q1
P mos
AF9435P
AF4835P
L1
22uH
C1
470uF
Output
5V/5A
5A
R1
9K
C4
50nF
Optional
C3
470uF
R2
3K
C4 270pF
C5 50nF
?
?
C6 220nF
Vout=Vref ? 1 +
?
R 1 ?
R 2 ?
Step-Down DC/DC converter
AP2004 Rev. 3
5 of 8
FEBRUARY 2009
? Diodes Incorporated
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