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PDF AP1609 Data sheet ( Hoja de datos )
| Número de pieza | AP1609 | |
| Descripción | PWM/PFM Dual Mode Step-up DC/DC Converter | |
| Fabricantes | Anachip | |
| Logotipo |  |
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PWM/PFM Dual Mode Step-up DC/DC Converter
AP1609
Features
- Input Voltage Range: 2.5~6V
- Output Voltage Range: 3.0~17V（±2.5%）
- PWM/PFM Switching Control
- Oscillator Frequency: 300KHz（±20%）
- High Efficiency: 91%（Typ .）
- Stand-by Current: ISTB＝1µA.（Typ.）
- Built-in internal N-Channel MOS
- Pb-Free Package: SOP-8L/TSSOP-8L
Applications
- Electronic Information Organizers
- Palmtops
- Cellular and portable phones
- Portable Audio Systems
- Various Multi-function Power Supplies
General Descriptions
The AP1609 is high efficient step-up DC/DC
converter. Large output current is possible having
a built in internal N channel MOSFET, and using an
external coil and diode.
Output voltage is programmable with 1.23V of
standard voltage supply internal, and using
externally connected components, output voltage
（FB） can be set up at will.
With a 300KHz switching frequency, the size of the
external components can be reduced. Control
switches from PFM to PWM during light loads with
the AP1609（PWM/PFM switchable）and the series
is highly efficient from light loads to large output
currents.
During stand-by time （CE pin “Low”）, current
consumption is reduced to 1µA.
Pin Assignment
Pin Descriptions
CE 1
Vcc 2
FB 3
PGND 4
AP1609
SOP-8L
8 GND
7 GND
6 LX
5 LX
GND
Vcc
Vcc
CE
18
2
AP1609
3
4
7
6
5
TSSOP-8L
LX
PGND
PGND
FB
Pin
Name
Pin No.
SOP TSSOP
Description
FB 3
5 Feedback pin
Chip Enable:
CE 1
4
H: Enable
L: Disable
Vcc 2 2、3 IC signal power supply pin
PGND 4 6、7 Power MOSFET GND
Switch Pin. Connect
LX 5、6
8
external inductor/diode
here. Minimize trace area
at this pin to reduce EMI.
GND 7、8 1 GND Pin
This 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.1.2 Mar.25, 2005
1/8
1 page  
PWM/PFM Dual Mode Step-up DC/DC Converter
AP1609
Typical Performance Characteristics
Vcc v.s. Supply Current
210
180 VCE=Vcc
150
120
90
60
30
0
3 3.5 4 4.5 5 5.5
Vcc (V)
6
Vcc v.s. Frequency
400
Load=300mA
350
300
250
200
150
100
3 3.5 4 4.5 5 5.5
Vcc (V)
6
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
3
Line Regulation
Load=50mA
3.5 4 4.5 5 5.5 6
Vcc (V)
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
0
Load Regulation
Vcc=5V
200 400 600
Load (mA)
800 1000
100
95
90
85
80
75
70
65
60
0
Load v.s. Efficiency
Vcc=3.3V,Vout=5V
0.2 0.4 0.6 0.8 1 1.2 1.4
Load (A)
100
95
90
85
80
75
70
65
60
0
Load v.s. Efficiency
Vcc=5V,Vout=12V
0.2 0.4 0.6 0.8 1 1.2 1.4
Load (A)
Anachip Corp.
www.anachip.com.tw
Rev.1.2 Mar.25, 2005
5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AP1609.PDF ] | |
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