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AAT1102 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 AAT1102
기능 ADVANCED PWM DC-DC CONVERTER
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AAT1102 데이터시트, 핀배열, 회로
Advanced Analog Technology, Inc.
AAT1102
Product information presented is current as of publication date. Details are subject to change without notice
ADVANCED PWM DC-DC CONVERTER WITH
INTERNAL SWITCH AND SOFT-START
www.DataShFeEet4AU1..cT6oAmU,R0.E23S, Internal Switch
High Efficiency: 90%
Adjustable Output: VDD to 12.5V
Adjustable Frequency: 640kHz or 1.3MHz
Wide Input Range: +2.6V to +5.5V
Low Shutdown Current: 0.1µA
Programmable Soft-Start
Small 8-Pin MSOP Package
PIN CONFIGURATION
TOP VIEW
EO 1
8 SS
IN 2
SHDN 3
AAT1102
7 FREQ
6 VDD
GND 4
5 SW
8-Pin MSOP
GENERAL DESCRIPTION
The AAT1102 is a step-up DC-DC converter with
a 1.6A, 0.23internal switch. Equipped with an
external compensation pin, this device offers user
flexibility in determining loop dynamic and
adjusting operating frequency. AAT1102 also
allows the use of small, low equivalent resistance
(ESR) ceramic output capacitor, and it’s capable
of converting a standard input of 3.3V to multiple
outputs of 8V, 8V , and 23V. Furthermore,
filtering and loop performance are facilitated and
enhanced by a high switching frequency of either
640 kHz or1.3MHz.
The AAT1102’s versatility comes with a
power-smart design. A soft-start programmed
with an external capacitor that sets the input
current ramp rate, reduces the current
consumption to 0.1µA in shutdown mode. When
operating, a mere 2.6V input yields an impressive
output voltage as high as 12.5V.
High switching frequency and economical design
allow AAT1102 to be less than 1.1mm high. Its
compact 8-pin MSOP package and superior
performance make it an ideal part for biasing TFT
displays.
؀᨜ᣊֺઝݾैٝڶૻֆ׹
Advanced Analog Technology, Inc.
Page 1 of 18
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AAT1102 pdf, 반도체, 판매, 대치품
Advanced Analog Technology, Inc.
ELECTRICAL CHARACTERISTICS
VDD = SHDN = 3V , FREQ = GND, unless otherwise specified. Typical values are at TC = +25o C )
AAT1102
N-CHANNEL SWITCH
PARAMETER
Current Limit
www.DataSheOet4nU-.Rcoemsistance
Leakage Current
SYMBOL
CONDITIONS
I LIM
R ON
I SWOFF
VDD = 1V, Duty Cycle = 65%
ISW = 1.2A
VSW = 12V
MIN
1.2
TYP
1.6
0.23
0.01
MAX UNITS
2.3 A
0.50
20.00 µA
SOFT-START
PARAMETER
Reset Switch Resistance
Charge Current
SYMBOL
CONDITIONS
VSS = 1.2V
MIN
1.5
TYP
4.0
MAX UNITS
300
7.0 µA
CONTROL INPUTS
PARAMETER
Input Low Voltage
Input High Voltage
Hysteresis
FREQ Pull-Down Current
SHDN Input Current
SYMBOL
CONDITIONS
VIL
SHDN, FREQ; VDD = 2.6V
to 5.5V
VIH
SHDN, FREQ; VDD = 2.6V
to 5.5V
SHDN, FREQ
MIN
0.7˙
VDD
I FREQ
I
SHDN
1.8
TYP
MAX UNITS
0.3˙
VDD
V
V
0.1˙
VDD
5.0
0.001
9.0
1.000
V
µA
µA
؀᨜ᣊֺઝݾैٝڶૻֆ׹
Advanced Analog Technology, Inc.
Page 4 of 18
V4.0

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AAT1102 전자부품, 판매, 대치품
Advanced Analog Technology, Inc.
Fig. 2 BLOCK DIAGRAM
AAT1102
www.DataSheet4U.com
Σ
؀᨜ᣊֺઝݾैٝڶૻֆ׹
Advanced Analog Technology, Inc.
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