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AAT3111 데이터시트 PDF




Advanced Analogic Technologies에서 제조한 전자 부품 AAT3111은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 AAT3111 자료 제공

부품번호 AAT3111 기능
기능 MicroPower Regulated Charge Pump
제조업체 Advanced Analogic Technologies
로고 Advanced Analogic Technologies 로고


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AAT3111 데이터시트, 핀배열, 회로
AAT3111
MicroPower™ Regulated Charge Pump
General Description
Features
ChargePump
The AAT3111 ChargePump™ is a MicroPower
switched-capacitor voltage converter that delivers
a regulated output. No external inductor is required
for operation. Using three small capacitors, the
AAT3111 can deliver up to 150mA to the voltage
regulated output. The AAT3111 features very low
quiescent current and high efficiency over a large
portion of its load range making this device ideal
for battery-powered applications. Furthermore, the
combination of few external components and small
package size keeps the total converter board area
to a minimum in space restricted applications. The
AAT3111 operates in an output-regulated voltage
doubling mode. The regulator uses a pulse-skip-
ping technique to provide a regulated output from a
varying input supply. The AAT3111 contains a ther-
mal management circuit to protect the device
under continuous output short circuit conditions.
The AAT3111 is available in a surface mount 6-pin
SOT23 or 8-pin SC70JW package and is rated
from -40 to 85°C.
The AAT3111 ChargePump™ is a member of
AnalogicTech's Total Power Management IC prod-
uct family.
• Step-up type voltage converter
• Input Range
• AAT3111-3.6: 1.8V to 3.6V
• AAT3111-3.3: 1.8V to 3.3V
• MicroPower consumption: 20µA
• 3.6V, 3.3V Regulated ±4% output
• 3.6V Output Current
• 100mA with VIN 3.0V
• 20mA with VIN 2.0V
• 3.3V Output Current
• 100mA with VIN 2.5V
• 20mA with VIN 1.8V
• High Frequency 750 kHz operation
• Shutdown mode draws less than 1µA
• Short-circuit/over-temperature protection
• 2kV ESD Rating
• SC70JW-8 or SOT23-6 package
Applications
• Handheld Electronics
• Digital Cameras
• PDAs
• Battery Back Up Supplies
• MP3 Players
Typical Application
VOUT
COUT
10uF
ON/OFF
AAT3111
VOUT
C+
GND
VIN
SHDN
C-
1uF
VIN
CIN
10uF
3111.2002.3.0.91
1




AAT3111 pdf, 반도체, 판매, 대치품
AAT3111
MicroPower™ Regulated Charge Pump
Electrical Characteristics (TA = -40 to 85°C unless otherwise noted. Typical values are at TA=25°C,
CFLY=1µF, CIN=10µF, COUT=10µF)
AAT3111-3.6
Symbol Description
Conditions
VIN
IQ
VOUT
ISHDN
VRIPPLE
η
fOSC
VIH
VIL
IIH
IIL
tON
ISC
Input Voltage
No Load Supply Current 5
Output Voltage
Shutdown Supply Current
Ripple Voltage
Efficiency
Frequency
SHDN Input Threshold High
SHDN Input Threshold Low
SHDN Input Current High
SHDN Input Current Low
VOUT Turn-on time
Short-circuit current 4
VOUT=3.6V
1.8V < VIN < 3.6V, IOUT=0mA, SHDN=VIN
2.0V < VIN < 3.6V, IOUT 20mA
3.0V < VIN < 3.6V, IOUT 100mA
1.8V < VIN < 3.6V, IOUT =0mA, VSHDN=0
VIN = 2.5V, IOUT = 50mA
VIN = 3V, IOUT = 100mA
VIN = 2.0V, IOUT = 20mA
Oscillator Free Running
SHDN = VIN
SHDN = GND
VIN = 1.8V, IOUT = 0mA
VIN = 1.8V, VOUT = GND, SHDN = 3V
Note 4: Under short-circuit conditions, the device may enter overtemperature protection mode.
Note 5: IQ = IVIN + IVOUT. VOUT is pulled up to 4.1V to prevent switching.
Min
1.8
3.46
3.46
1.4
-1
-1
Typ
20
3.6
3.6
0.01
25
30
90
750
0.2
300
Max
VOUT
30
3.74
3.74
1
0.3
1
1
Units
V
µA
V
V
µA
mVP-P
%
kHz
V
V
µA
µA
ms
mA
4 3111.2002.3.0.91

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AAT3111 전자부품, 판매, 대치품
AAT3111
MicroPower™ Regulated Charge Pump
Typical Characteristics — AAT3111-3.6
(Unless otherwise noted, VIN = 3V, CIN = COUT =10µF, CFLY = 1µF, TA = 25°C)
Output Voltage vs. Output Current
Supply Current vs. Input Voltage
3.75
3.70
3.65
3.60
3.55
3.50
3.45
0.01
VIN=2.9V
VIN=2.0V
VIN=2.3V
0.1 1 10
Output Current (mA)
100
1000
60
50
40
30
20
10
0
1.6
No Load, Switching
No Load, Not Switching
2.1 2.6
Input Voltage (V)
3.1
3.6
Efficiency vs. Supply Voltage
100%
95% 50mA
90% 100mA
85%
80%
10mA
75%
70%
65%
60%
55%
50%
1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2
Supply Voltage (V)
Efficiency vs. Load Current
100%
90%
80%
VIN=2.0V
70%
60%
50%
40%
30%
20%
10%
0%
0.01
0.1
VIN=2.3V
1
Load Current (mA)
VIN=2.6V
10
100
Startup
SHDN (2V/div)
ILOAD=100mA
VIN=2.1V
ILOAD=50mA
VIN=2.1V
VOUT (1V/div)
Time (100µs/div.)
3111.2002.3.0.91
VSHDN Threshold vs. Supply Voltage
0.9
0.8
VIH
0.7
0.6
VIL
0.5
0.4
1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1
Supply Voltage (V)
7

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