AAT1102_5 AAT [Advanced Analog Technology, Inc.], AAT1102_5 Datasheet

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AAT1102_5

Manufacturer Part Number
AAT1102_5
Description
ADVANCED PWM DC-DC CONVERTER WITH INTERNAL SWITCH AND SOFT-START
Manufacturer
AAT [Advanced Analog Technology, Inc.]
Datasheet
1.AAT1102_5.pdf (18 pages)
Product information presented is current as of publication date. Details are subject to change without notice
FEATURES
PIN CONFIGURATION
SHDN
GND
EO
IN
1.6A, 0.23Ω, Internal Switch
High Efficiency: 90%
Adjustable Output:
Adjustable Frequency: 640kHz or 1.3MHz
Wide Input Range: +2.6V to +5.5V
Low Shutdown Current:
Programmable Soft-Start
Small 8-Pin MSOP Package
1
2
3
4
TOP VIEW
8-Pin MSOP
AAT1102
Advanced Analog Technology, Inc.
–
V
DD
–
8
7
6
5
Advanced Analog Technology, Inc
0 μ
台灣類比科技股份有限公司
to 15V
ADVANCED PWM DC-DC CONVERTER WITH
1 .
FREQ
SS
V
SW
DD
A
INTERNAL SWITCH AND SOFT-START
Page 1 of 18
GENERAL DESCRIPTION
The AAT1102 is a step-up DC-DC converter with
a 1.6A,
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,
filtering and loop performance are facilitated and
enhanced by a high switching frequency of either
640 kHz or1.3MHz.
The
power-smart design.
with an external capacitor that sets the input
current
consumption to
operating, a mere 2.6V input yields an impressive
output voltage as high as 15V.
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.
AAT1102’s
. 0
ramp
23
Ω
internal switch. Equipped with an
0 μ
−
1 .
8
rate,
V
A
versatility
–
, and 23V.
AAT1102 (BIN2)
.
in shutdown mode. When
A soft-start programmed
–
reduces
comes
the
Furthermore,
with
current
V5.0
a

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AAT1102_5 Summary of contents

Page 1

Advanced Analog Technology, Inc. Product information presented is current as of publication date. Details are subject to change without notice FEATURES 1.6A, 0.23Ω, Internal Switch High Efficiency: 90% Adjustable Output Adjustable Frequency: 640kHz or 1.3MHz Wide Input Range: ...

Page 2

Advanced Analog Technology, Inc. PIN DESCRIPTIONS PIN NAME 1 EO Compensation Pin for Error Amplifier Feedback Pin with a Typical Reference Voltage of 1.24V SHDN Shutdown Control Pin. The Device Will Turn Off When SHDN is Low ...

Page 3

Advanced Analog Technology, Inc. ELECTRICAL CHARACTERISTICS = SHDN = FREQ = GND , ( PARAMETER Input Supply Voltage Range V Under Voltage DD Lockout Quiescent Current Shutdown ...

Page 4

Advanced Analog Technology, Inc. ELECTRICAL CHARACTERISTICS = = ( , FREQ = GND, V SHDN 3V DD N-CHANNEL SWITCH PARAMETER Current Limit On-Resistance Leakage Current SOFT-START PARAMETER Reset Switch Resistance Charge Current CONTROL INPUTS PARAMETER Input Low Voltage Input High ...

Page 5

Advanced Analog Technology, Inc. Typical Operating Characteristics 8.4 8.3 8.2 8 950 850 750 650 550 ...

Page 6

Advanced Analog Technology, Inc. Fig. 1 TYPICAL APPLICATION CIRCUIT – – 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2 2. ON/ OFF – – . V5.0 ...

Page 7

Advanced Analog Technology, Inc. Fig. 2 BLOCK DIAGRAM – – Σ 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2) – – . V5.0 ...

Page 8

Advanced Analog Technology, Inc. Fig. 3 AAT1102 IN A SEPIC CONFIGURATION – – 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2 2. – – . V5.0 ...

Page 9

Advanced Analog Technology, Inc. Fig. 4 MULTIPLE-OUTPUT TFT LCD POWER SUPPLY – – 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2) – – . V5.0 ...

Page 10

Advanced Analog Technology, Inc. Inductor selection where D is duty cycle peak − And , − ...

Page 11

Advanced Analog Technology, Inc. Current Sampling Transfer Function Error voltage to duty transfer function ( 2 ξ ...

Page 12

Advanced Analog Technology, Inc. ( π ⎡ − ⎢ ⎣ is equal to reference voltage =1.24V, k ...

Page 13

Advanced Analog Technology, Inc. PACKAGE DIMENSION MSOP-8 – – 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2) – – . V5.0 ...

Page 14

Advanced Analog Technology, Inc. PACKAGE DIMENSION (CONT.) MSOP-8 – – 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2) – – . V5.0 ...

Page 15

Advanced Analog Technology, Inc. TAPE AND REEL PACKING METHOD: 2,500PCS/REEL, 1 REEL/BOX – – 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2) – – . V5.0 ...

Page 16

Advanced Analog Technology, Inc. TAPE AND REEL (CONT.) PACKING METHOD: 2,500PCS/REEL, 1 REEL/BOX – – 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2) – – . V5.0 ...

Page 17

Advanced Analog Technology, Inc. PART MARKING MSOP8 TOP MARKING 1102 MAAC MSOP8 BACK MARKING YYWW – – 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2) – – . V5.0 ...

Page 18

Advanced Analog Technology, Inc. ORDERING INFORMATION – – 台灣類比科技股份有限公司 Advanced Analog Technology, Inc Page AAT1102 (BIN2) – – . V5.0 ...

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