AAT3223IGU-1.8-T1 Advanced Analogic Technologies, Inc., AAT3223IGU-1.8-T1 Datasheet

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AAT3223IGU-1.8-T1

Manufacturer Part Number
AAT3223IGU-1.8-T1
Description
Manufacturer
Advanced Analogic Technologies, Inc.
Datasheet
General Description
The AAT3223 PowerLinear NanoPower low
dropout (LDO) linear regulator is ideal for portable
applications where extended battery life is critical.
This device features extremely low quiescent cur-
rent, typically 1.1µA. Dropout voltage is also very
low, typically 190mV at 100mA. The AAT3223 has
an enable pin which, when pulled low, will put the
LDO regulator into shutdown mode, removing
power from its load and offering extended power
conservation capabilities for portable battery-pow-
ered applications. The AAT3223 also has a Power-
OK (POK) feature which monitors the LDO output
voltage and will alert the system if the output falls
out of regulation.
The AAT3223 has output short-circuit and over-
current protection. In addition, the device has an
over-temperature protection circuit, which will shut
down the LDO regulator during extended over-cur-
rent events.
The AAT3223 is available in a Pb-free, space-saving
6-pin SOT23 package and is rated over the -40°C to
+85°C temperature range.
The AAT3223 is similar to the AAT3221 with the
exception that it offers the additional Power-OK
function through the POK pin.
Typical Application
3223.2006.03.1.5
GND
V
IN
1µF
ON/OFF
IN
EN
AAT3223
GND
Features
Applications
Linear Regulator with Power-OK
1.1µA Quiescent Current
250mA Output Current
Low Dropout: 190mV (typical)
High Accuracy: ±2%
Current Limit Protection
Over-Temperature Protection
Extremely Low Power Shutdown Mode
Low Temperature Coefficient
Stable Operation With Virtually Any Output
Capacitor Type
Power-OK Signal Output
Active High Enable Pin
4kV ESD
Factory-Programmed Output Voltages
6-pin SOT23 Package
Cellular Phones
Digital Cameras
Handheld Electronics
Notebook Computers
PDAs
Portable Communication Devices
Remote Controls
POK
OUT
250mA NanoPower™ LDO
100k
PowerLinear
1µF
AAT3223
V
POK
GND
OUT
1

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AAT3223IGU-1.8-T1 Summary of contents

Page 1

General Description The AAT3223 PowerLinear NanoPower low dropout (LDO) linear regulator is ideal for portable applications where extended battery life is critical. This device features extremely low quiescent cur- rent, typically 1.1µA. Dropout voltage is also very low, typically 190mV ...

Page 2

Pin Descriptions Pin # Symbol Function 1 IN Input pin recommended to bypass this pin with a 1µF capacitor. 2 GND Ground connection pin. 3 OUT Output pin. This pin should be decoupled with a 1µF or larger ...

Page 3

Absolute Maximum Ratings T = 25°C, unless otherwise noted. A Symbol Description V Input Voltage GND Voltage EN V Maximum EN to Input Voltage ENIN(MAX) I Maximum DC Output Current OUT T Operating Junction Temperature Range ...

Page 4

Electrical Characteristics 1V 1mA OUT(NOM) OUT Symbol Description V DC Output Voltage Tolerance OUT I Output Current OUT I Short-Circuit Current SC I Ground Current Q I Off-Supply Current Q-OFF ∆V /V ...

Page 5

Typical Characteristics Unless otherwise noted OUT Output Voltage vs. Output Current 3.03 3.02 3.01 3 2.99 80°C 2.98 2. Output Current (mA) Output Voltage vs. Input Voltage 3.03 1mA 3.02 10mA 3.01 ...

Page 6

Typical Characteristics Unless otherwise noted OUT Noise Spectrum -10 -20 -30 1.E+01 1.E+02 1.E+03 1.E+04 Frequency (Hz) Line Response With 10mA Load 3.8 3.6 Input 3.4 3.2 3 Output 2.8 2.6 -200 ...

Page 7

Typical Characteristics Unless otherwise noted OUT Power-Up With 1mA Load - Time (ms) Power-Up With 10mA Load - Time (ms) Power-Up With 100mA Load - Time (ms) ...

Page 8

Typical Characteristics Unless otherwise noted OUT Power-Off from 100mA Load - Time (µs) EN Threshold vs. Input Voltage 1.50 1.25 -30°C 1.00 0.75 25°C 0.50 3.0 3.5 4.0 4.5 Input Voltage (V) 8 ...

Page 9

Functional Block Diagram IN EN Functional Description The AAT3223 is intended for LDO regulator applica- tions where output current load requirements range from no load to 250mA. The advanced circuit design of the AAT3223 has been optimized for very low ...

Page 10

Applications Information To assure the maximum possible performance is obtained from the AAT3223, please refer to the fol- lowing application recommendations. Input Capacitor Typically, a 1µF or larger capacitor is recommend- ed for C in most applications ...

Page 11

Ceramic Capacitor Materials: Ceramic capaci- tors less than 0.1µF are typically made from NPO or C0G materials. NPO and C0G materials gener- ally have tight tolerance and are very stable over temperature. Larger capacitor values are usually composed of X7R, ...

Page 12

The interaction between the short-circuit and ther- mal protection systems allows the LDO regulator to withstand indefinite short-circuit conditions without sustaining permanent damage. ...

Page 13

The following is an example for an AAT3223 set for a 2.8V output 2.9V OUT I = 250mA OUT I = 1.1µA GND 667mW + (2.8V × 150mA 150mA + 1.1µA IN(MAX 9.11V IN(MAX) ...

Page 14

... For example, a 2.8V system using a AAT3223IGU- 2.8-T1 operates at a continuous 100mA load cur- rent level and has short 250mA current peaks. The 70 ...

Page 15

The power dissipation for a 150mA load occurring for 8.2% of the duty cycle will be 20.9mW. Finally, the two power dissipation levels can summed to determine the total true power dissipation under the varied load ...

Page 16

... EHXYY SOT23-6 GFXYY SOT23-6 GEXYY SOT23-6 GQXYY SOT23-6 0.60 REF 0.40 ± 0.10 × 6 AAT3223 250mA NanoPower™ LDO 1 Part Number (Tape and Reel) AAT3223IGU-1.8-T1 AAT3223IGU-2.7-T1 AAT3223IGU-2.8-T1 AAT3223IGU-2.85-T1 AAT3223IGU-3.0-T1 AAT3223IGU-3.3-T1 0.15 ± 0.07 GAUGE PLANE 0.45 ± 0.15 0.10 BSC 3223.2006.03.1.5 2 ...

Page 17

... Advanced Analogic Technologies, Inc. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice. ...

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