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AP2004 数据表(PDF) 5 Page - Diodes Incorporated

部件名 AP2004
功能描述  PWM BUCK CONTROLLER
PDF  8 Pages
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制造商  DIODES [Diodes Incorporated]
网页  http://www.diodes.com
标志 DIODES - Diodes Incorporated

AP2004 数据表(HTML) 5 Page - Diodes Incorporated

  AP2004_09 Datasheet HTML 1Page - Diodes Incorporated AP2004_09 Datasheet HTML 2Page - Diodes Incorporated AP2004_09 Datasheet HTML 3Page - Diodes Incorporated AP2004_09 Datasheet HTML 4Page - Diodes Incorporated AP2004_09 Datasheet HTML 5Page - Diodes Incorporated AP2004_09 Datasheet HTML 6Page - Diodes Incorporated AP2004_09 Datasheet HTML 7Page - Diodes Incorporated AP2004_09 Datasheet HTML 8Page - Diodes Incorporated  
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AP2004
PWM BUCK CONTROLLER
AP2004 Rev. 3
5 of 8
FEBRUARY 2009
www.diodes.com
© Diodes Incorporated
Electrical Characteristics
(Continued) (TA = 25ºC, VCC = 6V, f = 200 Khz)
Output section
Symbol
Parameter
Conditions
Min
Typ.
Max
Unit
ILEAK
Leakage current
VO = 25V
10
µA
IDRV
Sink current
VIN = 20V
200
mA
Source current
VIN = 20V
200
mA
VSAT
Output saturation voltage
IO = 10 mA
1.0
1.5
V
ISC
Short-circuit output current
VO = 6V
120
mA
PWM comparator
Symbol
Parameter
Conditions
Min
Typ.
Max
Unit
VT0
Input threshold voltage at f = 10 KHz
(COMP)
CT
0.6
0.7
V
VT100
Maximum duty cycle
1.2
1.3
V
Total device
Symbol
Parameter
Conditions
Min
Typ.
Max
Unit
ICCA
Average supply current
CT = 270pF
6
10
mA
Soft Start
Symbol
Parameter
Conditions
Min
Typ.
Max
Unit
VSS
Soft-start Voltage
2.3
V
ISS
Constant Charge Current
20
µA
Typical Application Circuit
L1
22uH
Output
5V/5A
C2
10nF
Optional
Vcc = 12V
P mos
Q1
C1
470uF
R3 1K~30K
AF9435P
AF4835P
R1
9K
5A
C4
50nF
Optional
R2
C3
470uF
Step-Down DC/DC converter
C6 220nF
C5 50nF
C4 270pF
3K
Vout=Vref
⎟
⎠
⎞
⎜
⎝
⎛ +
2
1
1
R
R



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