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PDF AP3602B Data sheet ( Hoja de datos )
| Número de pieza | AP3602B | |
| Descripción | REGULATED CHARGE PUMP | |
| Fabricantes | BCD Semiconductor | |
| Logotipo |  |
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Data Sheet
100mA REGULATED CHARGE PUMP
General Description
Features
AP3602A/B
The AP3602A/B are regulated step-up DC/DC
converters based on charge pump technique. These ICs
have the ability to supply 100mA constant output
current or 250mA peak output current for 100ms from
3.0V to 5V input (2.7V to 4.5 V for AP3602B), so they
can be used as white LEDs driver or flash LED driver.
The AP3602A/B have very low power dissipation and
high efficiency in typical applications. Other features
include over-temperature protection, low temperature
coefficient and etc. to meet some special requirements
of hand-held battery powered devices.
Only 3 external capacitors are required in applications,
which helps to save space and lower cost. These chips
also have a disable terminal to turn on or turn off the
chip to ease the use.
The AP3602A/B are available in SOT-23-6 package.
· Low Quiescent Current: 13µA Typical
· Regulated Output Voltage Precision: 4%
· High Output Current:
100mA when VIN≥3.0V
50mA when VIN≥2.7V
· High Frequency: up to 1.2 MHz
· Low Shutdown Supply Current: <1µA
· High Output Peak Current: 250mA for 100ms
· Over Temperature Protection
· Operating Temperature Range: -40oC to 85oC
Applications
· Mobile Phone Backlight Driver
· Camera Flash LED Driver
· MP3, MP4
· Handheld Device
· Portable Communication Device
www.DataSheet4U.com
Apr. 2007 Rev. 1.2
SOT-23-6
Figure 1. Package Type of AP3602A/B
BCD Semiconductor Manufacturing Limited
1
1 page  
100mA REGULATED CHARGE PUMP
Electrical Characteristics
(CFLY=1µF, CIN=COUT=10µF, TA=25oC, unless otherwise specified.)
For AP3602A
Data Sheet
AP3602A/B
Parameter
Input Voltage
Quiescent Current
Symbol
VIN
IQ
Conditions
VO=5V
VIN=2.7V to 5.0V, IO=0mA,
VSHDN =VIN, Not Switching
Min Typ Max Unit
2.7 VO V
13 30 µA
Output Voltage
VO 2.7V<VIN<5V, IO≤50mA
3.0V<VIN<5V, IO≤100mA
4.8 5.0 5.2
4.8 5.0 5.2
V
Shutdown Supply Current
ISHDN
2.7V<VIN<3.6V, IO=0, VSHDN =0V
3.6V<VIN<5.0V, IO=0, VSHDN =0V
0.01 1
2.5
µA
Ripple Voltage
VRIPPLE
VIN=2.7V, IO=50mA
VIN=3V, IO=100mA
25
mVPP
30
Efficiency
η VIN=2.7V, IO=50mA
92 %
Frequency
fOSC Oscillator free running
1.2 MHz
SHDN Input Threshold
High
SHDN Input Threshold
Low
VIH
VIL
1.4
V
0.3
SHDN Input Current High
SHDN Input Current Low
VOUT Turn-on Time
Short-Circuit Current
IIH VSHDN =VIN
IIL VSHDN =GND
tON VIN=3V, IO=0mA
ISC VIN=3V, VO=GND, VSHDN =3V
-1 1
µA
-1 1
0.2 ms
300 mA
Apr. 2007 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
5
5 Page 
Data Sheet
100mA REGULATED CHARGE PUMP
Typical Performance Characteristics (Continued)
AP3602A/B
Typical Performance Characteristics for AP3602B
(Unless otherwise noted, VIN=3.0V, CIN=COUT=10µF, CFLY=1µF Ceramic Cap, TA=25oC)
4.6
4.4
4.2
4.0
3.8
AP3602-4.5V, V =3.0V
IN
AP3602-4.5V, V =2.7V
IN
3.6
0
25 50 75 100 125 150
Output Current (mA)
Figure 15. Output Voltage vs. Output Current
90
80
70
60
50
40
2.5
AP3602-4.5V, I =25mA
OUT
AP3602-4.5V, I =50mA
OUT
AP3602-4.5V, I =100mA
OUT
3.0 3.5 4.0
Input Voltage (V)
4.5
Figure 16. Efficiency vs. Input Voltage
85.0
82.5
80.0
77.5
75.0
72.5
70.0
67.5
65.0
62.5
60.0
0.1
AP3602-4.5V, V =2.7V
IN
AP3602-4.5V, V =3.0V
IN
1 10
Output Current (mA)
100
Figure 17. Efficiency vs. Output Current
IOUT 0mA to 50mA
Time 200µS/div
Figure 18. Load Transient Response
Apr. 2007 Rev. 1.2
BCD Semiconductor Manufacturing Limited
11
IOUT 0mA to 50mA
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet AP3602B.PDF ] | |
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