AAT1501A [AAT]
REGULATED CHARGE PUMP DC/DC CONVERTERS; 稳压电荷泵DC / DC转换器
| 型号： | AAT1501A |
| 厂家： | 
ADVANCED ANALOG TECHNOLOGY, INC. |
| 描述： | REGULATED CHARGE PUMP DC/DC CONVERTERS |
| 文件： | 总10页 (文件大小：123K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Advanced Analog Technology, Inc.
Details are subject to change without notice
REGULATED CHARGE PUMP DC/DC CONVERTERS
Features
General Description
The AAT1501/A is a charge pump DC/DC
converter mainly used for white LED backlighting.
It operates with an input voltage ranging from 2.7V
to 5.0V to generate constant 5.0V (AAT1501) or
4.5V (AAT1501A) output. The regulated output is
produced by using an internal feedback switched
capacitor voltage doublers.
z Monitored Output Voltage
(AAT1501: VO = 5V ± 4%)
(AAT1501A: VO = 4.5V ± 4% )
z Output Current: 120mA (VDD = 3.3V)
150mA (VDD = 3.6V)
z Input Voltage Range: 2.7V to 5.0V
z A Power-Saving Shutdown Current of less than
1µA
The AAT1501/A requires no external inductor
when operating. By using a flying capacitor, the
AAT1501/A can deliver up to 120mA (VDD = 3.3V)
z Internal Oscillation Frequency : 750kHz
z Compact SOT-23-6 Package
output current for the system. The AAT1501/A’s
typical ultra low operating current, and compact
external parts make it an ideal component for small,
portable, battery-powered applications.
Pin Configuration
AAT1501/A comes in a compact 6-pin SOT-23
package to offer users optimal and economical
power management solution.
CF+
VO
GND
VDD
CF−
SHDN
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– Advanced Analog Technology, Inc. –
Page 1 of 10
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Advanced Analog Technology, Inc.
Pin Description
Pin No Name I/O
Description
1
VO
O Output Voltage
2
3
GND - Ground
I Shutdown Input Pin
SHDN
CF−
4
5
6
O Flying Capacitor Negative Terminal
- Supply Voltage
VDD
CF+
I Flying Capacitor Positive Terminal
Absolute Maximum Ratings
CHARACTERISTICS
SYMBOL
VDD
VALUE
UNIT
Supply Voltage
6
V
V
V
oC
oC
Output Voltage (VO , VCF+ , VCF−
)
VO
6
Input Voltage (VSHDN
)
VI
Tstorage
TC
6
Storage Temperature Range
Operating Temperature Range
− 45 to 125
− 40 to 85
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– Advanced Analog Technology, Inc. –
Page 2 of 10
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Advanced Analog Technology, Inc.
Electrical Characteristics, VDD = 3.3 V (Unless Otherwise Specified)
Operating Condition
Parameter
Supply Voltage
Symbol
Test Condition
Min Typ Max Unit
VDD
2.7
5.0
V
VDD =2.7V to 5.0V,
IO =0 , SHDN = VDD
VDD =2.7V to 5.0V,
IO =0 , SHDN = 0V
IDD
Supply Current
-
1.5
2.0 mA
ISHDN
µA
Shutdown Current
-
0.01 1.00
fOSC
Oscillation Frequency
Thermal Shutdown
-
-
-
750
160
20
-
-
-
kHz
ºC
TSHDN
ºC
Thermal Shutdown Hysteresis THYS
Output Performance
Parameter
Symbol
Test Condition
Min Typ Max Unit
AAT1501
4.8
4.3
80
-
5.0
4.5
-
5.2
4.7
-
V
V
VOUT
Output Voltage
AAT1501A
IO
VOR
η
Output Current
Output Ripple
Efficiency
mA
mV
%
VDD =3V, SHDN = VDD
VDD =3V, IO =50mA
50
83
-
VDD =2.7V, IO =30mA
-
-
Control Input
Parameter
Symbol
Test Condition
Min Typ Max Unit
ISHDN
Input Current
-
±0.1
±1
µA
V
SHDN = 0 ~ VDD
V
1.1
SHDN High Voltage
SHDN Low Voltage
IH
VIL
0.5
V
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Page 3 of 10
V1.0
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Block Diagram
CF+
CF−
VDD
VO
SHDN
VREF
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– Advanced Analog Technology, Inc. –
Page 4 of 10
V1.0
Advanced Analog Technology, Inc.
Application Circuit
VDD
CIN
10µF
GND
VO
CF−
CF+
VDD
CFLY
1µF
VO
CO
10µF
SHDN
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Page 5 of 10
V1.0
Advanced Analog Technology, Inc.
Package Dimensions
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– Advanced Analog Technology, Inc. –
Page 6 of 10
V1.0
Advanced Analog Technology, Inc.
Package Dimensions (Cont.)
VARIATION (ALL DIMENSIONS SHOWN IN MILLIMETERS)
SYMBOL MIN
TYP
------
MAX
1.45
0.15
1.30
0.50
0.22
A
A1
A2
b
------
------
0.90
0.30
0.08
------
1.15
------
c
------
D
2.90 BSC
2.80 BSC
1.60 BSC
0.95 BSC
1.90 BSC
0.45
E
E1
e
e1
L
0.30
0.60
L1
L2
R
0.60 REF
0.25 BSC
------
0.10
0.10
0ο
------
0.25
8ο
R1
θ
------
4ο
10ο
θ1
5ο
15ο
NOTE:
1 JEDEC OUTLINE: MO-178 AB
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Page 7 of 10
V1.0
Advanced Analog Technology, Inc.
Tape and Reel
Packing Method: 3,000pcs/reel, 5 reels/box
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Page 8 of 10
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Advanced Analog Technology, Inc.
Tape and Reel (Cont.)
X.XXX X ± 0.0025
X.XXX
X.XX
X.X
± 0.006
± 0.025
± 0.10
± 0.25
X
UNIT: MILLIMETERS
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Page 9 of 10
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Advanced Analog Technology, Inc.
Part Marking
SOT23-6 TOP MARKING
AXX
NOTE: SOT23-6 HAS NO BACK MARKING.
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
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V1.0
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