AAT3110IJS-4.5-T1 AAT [Advanced Analog Technology, Inc.], AAT3110IJS-4.5-T1 Datasheet

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AAT3110IJS-4.5-T1

Manufacturer Part Number
AAT3110IJS-4.5-T1
Description
Manufacturer
AAT [Advanced Analog Technology, Inc.]
Datasheet

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Part Number:
AAT3110IJS-4.5-T1
Manufacturer:
ANALOG
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20 000
General Description
The AAT3110 ChargePump is a member of
AnalogicTech's Total Power Management IC™
(TPMIC™) product family.
switched capacitor voltage converter that delivers a
regulated output. No external inductor is required
for operation. Using three small capacitors, the
AAT3110 can deliver up to 100mA to the voltage
regulated output. The AAT3110 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
AAT3110 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 AAT3110 contains a ther-
mal management circuit to protect the device
under continuous output short-circuit conditions.
The AAT3110 is available in a Pb-free, surface-
mount 6-pin SOT23 or 8-pin SC70JW package and
is rated over the -40°C to +85°C temperature range.
Typical Application
3110.2005.11.1.4
V
OUT
ON/OFF
10 F
C
OUT
It is a MicroPower
VOUT
GND
SHDN
AAT3110
MicroPower™ Regulated Charge Pump
VIN
C+
C-
Features
Applications
Step-Up Voltage Converter
Input Voltage Range:
— AAT3110-5: 2.7V to 5V
— AAT3110-4.5: 2.7V to 4.5V
MicroPower Consumption: 13µA
Regulated 5V, 4.5V ±4% Output
5V Output Current:
— 100mA with V
— 50mA with V
4.5V Output Current:
— 100mA with V
— 50mA with V
Peak Current 250mA for 100ms
High Frequency 750kHz Operation
Shutdown Mode Draws Less Than 1µA
Short-Circuit/Over-Temperature Protection
2kV ESD Rating
SC70JW-8 or SOT23-6 Package
Cellular Phones
Digital Cameras
Handheld Electronics
LED/Display Backlight Driver
LEDs for Camera Flash
PDAs
Portable Communication Devices
1 F
IN
IN
IN
IN
10 F
C
ChargePump
SmartSwitch
2.7V
2.7V
IN
3.0V
3.0V
V
IN
AAT3110
1

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AAT3110IJS-4.5-T1 Summary of contents

Page 1

General Description The AAT3110 ChargePump is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family MicroPower switched capacitor voltage converter that delivers a regulated output. No external inductor is required for operation. Using three small ...

Page 2

Pin Descriptions Pin # SOT23-6 SC70JW Pin Configuration VOUT 1 GND 2 SHDN 3 2 MicroPower™ Regulated Charge Pump Symbol Function VOUT Regulated output pin. Bypass ...

Page 3

Absolute Maximum Ratings T = 25°C, unless otherwise noted. A Symbol Description GND GND OUT OUT V SHDN to GND SHDN t Output to GND Short-Circuit Duration SC T Operating Junction Temperature ...

Page 4

Electrical Characteristics T = -40°C to +85°C, unless otherwise noted. Typical values are Symbol Description AAT3110-5 V Input Voltage Load Supply Current Q V Output Voltage OUT I Shutdown Supply Current SHDN V Ripple ...

Page 5

Typical Characteristics — AAT3110-5V Unless otherwise noted 3V Output Voltage vs. Output Current 5.15 5.1 5. 3. 2.7V IN 4.9 4.85 4 Output Current (mA) Supply Current ...

Page 6

Typical Characteristics — AAT3110-5V Unless otherwise noted 3V Startup Time with 50mA Load SHDN (2V/div) V OUT (1V/div) Time (50 s/div) Load Transient Response for 50mA I OUT 0mA to 50mA (20mA/div) V OUT AC Coupled ...

Page 7

Typical Characteristics — AAT3110-5V Unless otherwise noted 3V Output Voltage vs. Input Voltage (I = 250mA) OUT 5.2 - 3.6 3.2 3.2 3.4 3.6 3.8 Input Voltage (V) ...

Page 8

Typical Characteristics — AAT3110-4.5V Unless otherwise noted 3V Output Voltage vs. Output Current 4.54 4.53 4.52 2.7V 3.0V 4.51 3.3V 4.5 4.49 0 Output Current (mA) Supply Current vs ...

Page 9

Typical Characteristics — AAT3110-4.5V Unless otherwise noted 3V Load Transient Response (V = 2.7V OUT (100mA/div) V OUT (20mV/div) Time (50 s/div) Output Ripple (I = 50mA @ V OUT V OUT AC Coupled ...

Page 10

Typical Characteristics — AAT3110-4.5V Unless otherwise noted 3V Startup SHDN (1V/div 150mA @ V LOAD I = 100mA @ V LOAD V OUT I = 50mA @ V (2V/div) LOAD Time (100 s/div) 10 ...

Page 11

Typical Characteristics — AAT3110 Unless otherwise noted 3V SHDN Input Threshold (high) vs. Input Voltage 1.00 0.95 -40 C 0.90 0. 0.80 0.75 0. 0.65 0.60 0.55 0.50 2.0 2.5 3.0 3.5 ...

Page 12

Functional Block Diagram VIN SHDN Functional Description Operation (Refer to block diagram) The AAT3110 uses a switched capacitor charge pump to boost an input voltage to a regulated output voltage. Regulation is achieved by sensing the charge pump output voltage ...

Page 13

Applications Information External Capacitor Selection Careful selection of the three external capacitors and C is very important because they IN OUT FLY will affect turn-on time, output ripple, and transient performance. Optimum performance will be obtained ...

Page 14

Efficiency ( ) for an ideal voltage doubler can typically be expressed as the output power divided by the ...

Page 15

C capacitor. The nominal 10µF C OUT itor can be increased to 22µF or more. Larger val- ues for the C capacitor (22µF and greater) will by OUT nature have lower ESR and can improve both high and low ...

Page 16

Figure 3: Evaluation Board Top Side Silk Screen Layout / Assembly Drawing. Typical Application Circuits V OUT (5V) C OUT 10 F ON/OFF Figure 6: Typical Charge Pump Boost Converter Circuit (USB Port V ) OUT 10 F ...

Page 17

Li-Ion Battery 2. ON/OFF Figure 8: 5V LED or Display Driver from a Li-Ion Battery Source 3. SHDN Figure 9: 5V, 200mA Step-Up Supply from Source. 3110.2005.11.1.4 ...

Page 18

... All dimensions in millimeters. 1. XYY = assembly and date code. 2. Sample stock is generally held on all part numbers listed in BOLD. 18 MicroPower™ Regulated Charge Pump Marking 1 EEXYY ASXYY EEXYY ASXYY SOT23-6 0.60 REF 0.40 0.10 6 AAT3110 Part Number (Tape and Reel) AAT3110IGU-4.5-T1 AAT3110IGU-5.0-T1 AAT3110IJS-4.5-T1 AAT3110IJS-5.0-T1 0.15 0.07 GAUGE PLANE 0.45 0.15 0.10 BSC 3110.2005.11.1.4 2 ...

Page 19

BSC 0.50 BSC 0.50 BSC 2. All dimensions in millimeters. 3110.2005.11.1.4 MicroPower™ Regulated Charge Pump SC70JW-8 0.225 0.075 0.20 0.100 0.45 AAT3110 0.048REF 0. 2.10 0.30 19 ...

Page 20

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 ...

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