AP2004 Diodes, Inc., AP2004 Datasheet - Page 5

• Manufacturer Part Number: AP2004
• Description: Pwm Buck Controller
• Manufacturer: Diodes, Inc.

Electrical Characteristics
Output section
PWM comparator
Total device
Soft Start
Typical Application Circuit
AP2004 Rev. 2
Symbol
Symbol
Symbol
Symbol
V
I
V
I
I
V
LEAK
V
I
I
DRV
CCA
T100
SAT
SC
SS
SS
T0
Leakage current
Sink current
Source current
Output saturation voltage
Short-circuit output current
Input threshold voltage at f =
10 KHz (COMP)
Average supply current
Soft-start Voltage
Constant Charge Current
Optional
10nF
C2
Parameter
Parameter
Parameter
Parameter
R3 1K~30K
Step-Down DC/DC converter
(Continued)
C4 270pF
C5 50nF
C6 220nF
Vout=Vref
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V
V
V
I
V
CT
Maximum duty cycle
C
O
O
IN
IN
O
AF9435P
AF4835P
T
5 of 8
= 10 mA
= 25V
= 6V
= 270pF
P mos
= 20V
= 20V
Q1
(T
⎛
⎜
⎝
5A
A
1
Conditions
Conditions
Conditions
Conditions
= 25ºC, V
+
R
R
22uH
1
2
L1
R1
9K
R2
3K
⎞
⎟
⎠
CC
= 6V, f = 200 Khz)
470uF
C1
C4
50nF
Optional
Vcc = 12V
PWM BUCK CONTROLLER
Output
Min.
Min.
Min.
Min.
5V/5A
1.2
470uF
C3
Typ.
Typ.
Typ.
Typ.
200
200
120
1.0
0.6
1.3
2.3
20
6
DECEMBER 2006
©
AP2004
Diodes Incorporated
Max.
Max.
Max.
Max.
1.5
10
0.7
10
Unit
Unit
Unit
Unit
mA
mA
mA
mA
µA
µA
V
V
V
V