AP3005 Datasheet PDF - BCD Semiconductor
| Part Number | AP3005 | |
| Description | 2A 420kHz PWM BUCK DC-DC CONVERTER | |
| Manufacturers | BCD Semiconductor | |
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There is a preview and AP3005 download ( pdf file ) link at the bottom of this page. Total 11 Pages | ||
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Data Sheet
2A 420kHz PWM BUCK DC-DC CONVERTER
AP3005
General Description
The AP3005 is a 420kHz fixed frequency PWM buck
(step-down) DC-DC converter, capable of driving a
2A load with high efficiency, low ripple and excellent
line and load regulation. The device includes a
voltage reference, an oscillation circuit, an error
amplifier, an internal PMOS and etc.
The PWM control circuit is able to adjust the duty
ratio linearly from 0 to 100%. The enable function,
over current protection function, short circuit
protection function and soft-start function are built
inside. When OCP or SCP happens, the operation
frequency will be reduced from 420kHz to 40kHz.
An internal compensation block is employed to
minimize external components.
The AP3005 serves as an ideal power supply unit for
portable devices, especially for chip set power in
portable systems. It’s widely used for PDVD, LCD
monitor and DPF chip set powers.
Features
• 2A Constant Output Current
• 130mΩ RDSON Internal Power MOSFET Switch
• Up to 94% Efficiency
• Fixed 420kHz Frequency
• Wide 4.75V to 25V Input Voltage Range
• Output Voltage Adjustable from 0.8V to 21V
• Built in Thermal Shutdown Function
• Built-in Current Limit Function
• Built-in Soft-Start Function
• Support Ceramic or Electrolytic Capacitors
Applications
• Portable DVD
• LCD Monitor/LCD TV
• Digital Photo Frame
• ADSL
• Set-up Box
The AP3005 is available in SOIC-8 package.
Mar. 2011 Rev. 1. 4
SOIC-8
Figure 1. Package Type of AP3005
BCD Semiconductor Manufacturing Limited
1
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Data Sheet
2A 420kHz PWM BUCK DC-DC CONVERTER
AP3005
Electrical Characteristics
VCC=12V, VOUT=5V, TA=25℃, unless otherwise specified.
Parameters
Symbol
Conditions
Input Voltage
VIN
Shutdown Quiescent Current
ISHDN VEN=0.4V
Quiescent Current
IQ VEN=2V, VFB=1.3V
Feedback Voltage
VFB VIN=5V to 25V
Feedback Bias Current
IFB VFB=1.3V
Switch Current Limit
ILIM TC=25℃
Oscillator Frequency
Frequency of Current Limit or
Short Circuit Protection
Error Amplifier Voltage Gain
Error Amplifier
Transconductance
EN Pin Threshold
fOSC
fOSC1
GV
GS
VH
VL
VFB<0.52V
EN Pin Input Leakage Current
Internal PMOS ON Resistance
Maximum Duty Cycle
IEN
RDSON
DMAX
VEN=2.5V
VIN=12V, VFB=0.65V,
VEN=12V, IOUT=2A,
TC=25℃
VFB=0.65V, ISW=0.1A
Thermal Shutdown
TOTSD
Thermal Shutdown Hysteresis THYS
Min Typ Max Unit
4.75 25 V
44 60 µA
1.3 2.5 mA
0.784 0.8 0.816 V
-0.1 -0.5 µA
2.5 3.4
A
336 420 504 kHz
40 kHz
1000
V/V
700 µA/V
1.5 V
0.7 V
-5 -10 µA
130 150 mΩ
100
155
20
%
ºC
ºC
Mar. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AP3005 electronic component. |
| Information | Total 11 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AP3005.PDF Datasheet ] | |
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