AP2004 Просмотр технического описания (PDF) - Diodes Incorporated.
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AP2004 Datasheet PDF : 8 Pages
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AP2004
PWM BUCK CONTROLLER
Block Diagram
VCC
SS CT
FB
COMP
1.25V
Bandgap
Reference
2.5V
Internal use
UVLO
Iss
Error Amplifier
-
1.5V +
0.7V -
+
Oscillator
MAX. 300KHz
PWM Amplifier
+
+
-
VCC
OUT
SCP
Absolute Maximum Ratings
Symbol
PD
VCC
VI
VO
ISOURCE
ISINK
TOP
TST
Parameter
Power dissipation at 25°C
Supply voltage
Amplifier input voltage
Collector output voltage
Source current
Sink current
Operating junction temperature range
Storage temperature range
Recommended Operating Conditions
Symbol
VCC
VI
VO
IFB
RF
CT
FOSC
Parameter
Supply voltage
Amplifier input voltage
Collector output voltage
Current into feedback terminal
Feedback resistor
Timing capacitor
Oscillator frequency
GND
Rating
600
28
20
VCC-1.0V
200
200
-20 to +125
-65 to +150
Unit
mW
V
V
V
mA
mA
oC
oC
Min
Max
Unit
3.6
27
V
1.05
1.45
V
Vcc-1.5
V
45
µA
100
kΩ
100
6800
pF
10
300
KHz
AP2004 Rev. 3
3 of 8
www.diodes.com
FEBRUARY 2009
© Diodes Incorporated
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