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PDF AP2201 Data sheet ( Hoja de datos )
| Número de pieza | AP2201 | |
| Descripción | PFM Control Step-Up Switching Regulator | |
| Fabricantes | Chipown | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AP2201 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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AP2201
Chipown
Super Small Package
PFM Control Step-Up Switching Regulator
General Description
The AP2201 Series is a CMOS PFM-control step-up
switching regulator that mainly consists of a reference
voltage source, an oscillator, and a comparator, enabling
products with a low ripple over a wide range, high
efficiency, and high output current. Products with a fixed
duty ratio of 75 % （ Lower Output Voltage ） or
88%(Higher Output Voltage) are also available. With the
AP2201 Series, a step-up switching regulator can be
configured by using an external coil, capacitor, and diode.
A protection circuit turns off the built-in MOS FET when
the voltage at the CONT pin exceeds the limit to prevent
it from being damaged. This feature, along with the mini
package and low current consumption, makes the
AP2201 Series ideal for applications such as the power
supply unit of portable equipment.
Features
z Low voltage operation: Startup at 0.9 V min
(Iout 1 mA) guaranteed
z Low input current: 2.3uA (Vout 3.3 V)
z Duty ratio: 75 % Built-in fixed-type PFM controller
z External parts: Coil, capacitor, and diode
z Output voltage: Settable to between 1.5 to 6.0V
accuracy of 2%
Applications
z Power supply for portable equipment such as digital
cameras, electronic notebooks, and PDA
z Power supply for audio equipment such as portable
CD/MD players
z Constant voltage power supply for cameras, video
equipment, and communications equipment
z Power supply for microcomputers
Package
z S0T-23-3
z SOT-89-3
Block Diagram
Application Circuit
Figure 1
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.1 http://www.chipown.com
1
1 page  
AP2201
7. Temperature vs. Switching Current
Chipown
8. Temperature vs. Operation Start Voltage
9. Output Current vs. Output Voltage
10. Output Current vs. Efficiency
11. Power On
12. Power Supply Voltage Fluctuation(Ta=25℃,RL=250Ω)
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.1 http://www.chipown.com
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AP2201.PDF ] | |
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