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AP1511 PDF 데이터시트 ( Data , Function )

부품번호 AP1511 기능
기능 PWM CONTROL 5A STEP-DOWN CONVERTER
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AP1511 데이터시트, 핀배열, 회로
Not Recommended
for New Designs
AP1511
PWM CONTROL 5A STEP-DOWN CONVERTER
Features
Input voltage: 3.6V to 23V
Output voltage: 0.8V to VCC
Duty ratio: 0% to 100% PWM control
Oscillation frequency: 300KHz typ.
Soft-start, Current limit, Enable function
Thermal Shutdown function
Built-in internal SW P-channel MOS
Lead-Free Package: SOP-16L
Lead Free Finish/RoHS Compliant (Note 1)
Applications
Microprocessor core supply
Networking power supply
Telecom power supply
LCD MNT, TV power supply
General Description
AP1511 consists of step-down switching regulator with PWM
control. These devices include a reference voltage source,
oscillation circuit, error amplifier, internal PMOS and etc.
AP1511 provides low-ripple power, high efficiency, and excellent
transient characteristics. The PWM control circuit is able to vary
the duty ratio linearly from 0 up to 100%. This converter also
contains an error amplifier circuit as well as a soft-start circuit that
prevents overshoot at startup. An enable function, an over
current protect function and a short circuit protect function are built
inside, and when OCP or SCP happens, the operation frequency
will be reduced from 300KHz to 30KHz. Also, an internal
compensation block is built in to minimum external component
count.
With the addition of an internal P-channel Power MOS, a coil,
capacitors, and a diode connected externally, these ICs can function
as step-down switching regulators. They serve as ideal power
supply units for portable devices when coupled with the SOP-16L
mini-package, providing such outstanding features as low current
consumption. Since this converter can accommodate an input
voltage up to 23V, it is also suitable for the operation via an AC
adapter.
Ordering Information
AP1511 X X X
Package
S : SOP-16L
Lead Free
Packing
L : Lead Free -U : Tube
-13 : Tape & Reel
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
Package
Code
Packaging
(Note 2)
Tube
Quantity
Part Number
Suffix
13” Tape and Reel
Quantity
Part Number Suffix
AP1511S
S SOP-16L 50
-U 2500/Tape & Reel
-13
Lead-free
Note:
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP1511 Rev. 1
1 of 7
www.diodes.com
NOVEMBER 2007
© Diodes Incorporated




AP1511 pdf, 반도체, 판매, 대치품
Not Recommended
for New Designs
AP1511
PWM CONTROL 5A STEP-DOWN CONVERTER
Electrical Characteristics ( VIN = 12V, TA = 25°C, unless otherwise specified )
Symbol
Parameter
Conditions
VFB Feedback Voltage
--
IFB Feedback Bias Current
IOUT = 0.1A
ISW Switch Current
--
ISSS
Current Consumption During
Power Off
VEN =
0V
VOUT
/VOUT
VOUT
/VOUT
fOSC
fOSC1
Line Regulation
VIN = 3.6V~23V
Load Regulation
IOUT = 0 to 5A
Oscillation Frequency
Measure waveform at SW pin
Frequency of Current
Short Circuit Protect
Limit
or
Measure
waveform
at
SW
pin
VSH
VSL
ISH
ISL
IOCSET
TSS
RDSON
η
θJA
Power-Off Pin Input Voltage
Evaluate oscillation at SW pin
Evaluate oscillation stop at SW pin
Power-Off Pin Input Leakage --
Current
--
OCSET Pin Bias Current --
Soft-Start Time
--
Internal MOSFET Rdson
VIN = 5V, VFB = 0V
VIN = 12V, VFB = 0V
Efficiency
VIN = 12V, VOUT = 5V
IOUT = 5A
Thermal Resistance
Junction-to-Ambient
SOP-16 (Note 4)
θJC
Thermal Resistance
Junction-to-case
SOP-16 (Note 4)
Min
0.784
-
5.5
-
-
-
240
10
2.0
-
-
-
75
0.3
-
-
-
-
-
Note: 4. Test conditions for SOP-16L: No heat sink.
Typ.
0.8
0.1
-
10
1
0.5
300
-
-
-
20
-10
90
2
70
50
90
156
11
Max
0.816
0.5
-
Unit
V
µA
A
- µA
2%
1%
360 KHz
- KHz
-
0.8
V
- µA
- µA
105 µA
5 ms
100
70
m
-%
- oC/W
- oC/W
AP1511 Rev. 1
4 of 7
www.diodes.com
NOVEMBER 2007
© Diodes Incorporated

4페이지










AP1511 전자부품, 판매, 대치품
Not Recommended
for New Designs
AP1511
PWM CONTROL 5A STEP-DOWN CONVERTER
Marking Information
Logo
Part No.
( Top View )
16
9
AP1511
YY WW X X
18
SOP-16L
Internal Code
Blank : Lead Free
Xth week : 01~52
Year : "07" = 2007
"08" = 2008
Package Information (All Dimensions in mm)
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the
President of Diodes Incorporated.
AP1511 Rev. 1
7 of 7
www.diodes.com
NOVEMBER 2007
© Diodes Incorporated

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