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PDF AP1510 Data sheet ( Hoja de datos )
| Número de pieza | AP1510 | |
| Descripción | PWM Control 3A Step-Down Converter | |
| Fabricantes | Anachip | |
| Logotipo |  |
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1. AP1510 pinout  Hay una vista previa y un enlace de descarga de AP1510 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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PWM Control 3A Step-Down Converter
AP1510
Features
General Description
- 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.
Applications
- PC Motherboard
- LCD Monitor
- Graphic Card
- DVD-Video Player
- Telecom Equipment
- ADSL Modem
- Printer and other Peripheral Equipment
- Microprocessor core supply
- Networking power supply
AP1510 consists of step-down switching regulator
with PWM control. These devices include a reference
voltage source, oscillation circuit, error amplifier,
internal PMOS and etc.
AP1510 provides low-ripple power, high efficiency,
and excellent transient characteristics. The PWM
control circuit is able to very 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
DataSheet4pmUoi.nrctia-opbmaleckadgeevi,cpersovwidhinegn
coupled with the SOP–8L
such outstanding features as
low current consumption. Since this converter can
accommodate an input voltage of up to 23V, it is also
ideal when operating via an AC adapter.
Pin Assignments
Pin Descriptions
FB 1
EN 2
OCSET 3
VCC 4
AP1510
8 Vss
7 Vss
6 Output
5 Output
Name
FB
EN
OCSET
VCC
Output
VSS
Pin Description
1 Feedback pin.
Power-off pin
H: Normal operation
2
(Step-down operation)
L: Step-down operation
stopped
(All circuits deactivated)
3
Add an external resistor to set
max output current.
4 IC power supply pin
Switch Pin. Connect external
5、6
inductor/diode here. Minimize
trace area at this pin to reduce
EMI.
7、8 GND Pin
DataShee
DataSheet4U.comThis datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 1.1 Jan 25, 2005
1/7
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1 page  
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PWM Control 3A Step-Down Converter
AP1510
Typical Performance Characteristics (Continued)
AP1510 Vout Ripple
(Vin=12V; Vout=3.3V; Iout=0.1A)
AP1510 Vout Ripple
(Vin=12V; Vout=3.3V; Iout=3A)
et4U.com
Test Circuit
open DataSheet4U.com
VCC OUTPUT FB open
OCSET
A EN VSS
A
+
-
VCC OUTPUT FB
OCSET
EN VSS
OUTPUT
VCC
FB
+ OCSET
- EN VSS
+V
-
DataShee
DataSheet4U.comAnachip Corp.
www.anachip.com.tw
DataSheet4 U .com
Rev. 1.1 Jan 25, 2005
5/7
DataSheet4U.com
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet AP1510.PDF ] | |
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