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AP1510 데이터시트 PDF




Diodes Incorporated에서 제조한 전자 부품 AP1510은 전자 산업 및 응용 분야에서
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부품번호 AP1510 기능
기능 PWM CONTROL 3A STEP-DOWN CONVERTER
제조업체 Diodes Incorporated
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AP1510 데이터시트, 핀배열, 회로
AP1510
PWM CONTROL 3A 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
SOP-8L Pb-Free Package
Lead Free Finish/RoHS Compliant (Note 1)
General Description
AP1510 consists of step-down switching regulator with PWM control.
These devices include a reference voltage source, oscillation circuit,
error amplifier, and internal PMOS.
AP1510 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–8L
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.
Applications
Cellular Phones
PC Motherboard
LCD Monitor
Graphic Card
DVD-Video Player
Telecom Equipment
ADSL Modem
Printer and other Peripheral Equipment
Microprocessor core supply
Networking power supply
Ordering Information
A P1 5 10 X X X
Package
S : SOP-8L
Lead-Free
L : Lead-Free
Packing
-U : Tube
-13 : Taping
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
(Note 2)
Package
Code
Packaging
Tube
Quantity
Part Number
Suffix
13” Tape and Reel
Quantity
Part Number
Suffix
AP1510S
Lead-free
S
SOP-8L
100
- U 2500/Tape & Reel -13
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.
AP1510 Rev. 1
1 of 8
www.diodes.com
JANUARY 2007
© Diodes Incorporated




AP1510 pdf, 반도체, 판매, 대치품
Typical Application Circuit
AP1510
PWM CONTROL 3A STEP-DOWN CONVERTER
VIN Vcc Output
CIN
470uF
ROCSET
3.9K
COCSET
Option
AP1510
OCSET
FB
CVcc
0.1uF
REN
100K
CEN
0.1uF
EN
VSS
L1
22uH
CC
Optional
D1
VOUT=5V/3A
RA
6.8K
+
-
RB
1.3K
C+
0.1uF-
COUT
470uF
Note: VOUT = VFB x (1+RA/RB)
RB=0.7K~5K ohm
VOUT
L1 Value
Figure 1.
VIN=12V, IMAX=3A
2.5V
3.3V
15uH
18uH
5V
22uH
Function Description
PWM Control
The AP1510 consists of DC/DC converters that employ a
pulse-width modulation (PWM) system.
In converters of the AP1510, the pulse width varies in a range
from 0 to 100%, according to the load current. The ripple voltage
produced by the switching can easily be removed through a filter
because the switching frequency remains constant. Therefore,
these converters provide a low-ripple power over broad ranges of
input voltage and load current.
Under Voltage Lockout
The under voltage lockout circuit of the AP1510 assures that the
high-side MOSFET driver outputs remain in the off state
whenever the supply voltage drops below 3.3V. Normal operation
resumes once VCC rises above 3.5V.
RDS(ON) Current Limiting
The current limit threshold is setting by the external resistor
connecting from VCC supply to OCSET. The internal 100uA sink
current crossing the resistor sets the voltage at pin of OCSET.
When the PWM voltage is less than the voltage at OCSET, an
over-current condition is triggered.
ILOAD × RDS(ON) = IOCSET × ROCSET
See above formula for setting the current limit value.
AP1510 Rev. 1
4 of 8
www.diodes.com
JANUARY 2007
© Diodes Incorporated

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AP1510 전자부품, 판매, 대치품
AP1510
PWM CONTROL 3A STEP-DOWN CONVERTER
Marking Information
(1) SOP-8L
Logo
Part no.
( Top View )
8
5
AP1510
YY WW X
14
ID code: internal
Xth week: 01~52
Year: "01" =2001
"02" =2002
Device
AP1510S
Package
SOP-8L
Identification Code
AP1510
Package Information ( in mm )
Package Type: SOP-8L
7°~9°
1.27typ
0.3/0.5
4.80/5.30
0.38/1.27
Detail "A"
Gauge Plane
Seating Plane
0.35max. 45°
7°~9°
Detail "A"
3.70/4.10
AP1510 Rev. 1
7 of 8
www.diodes.com
JANUARY 2007
© Diodes Incorporated

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관련 데이터시트

부품번호상세설명 및 기능제조사
AP1510

PWM Control 3A Step-Down Converter

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Diodes Incorporated
Diodes Incorporated

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