AAT1265IJS-3.6-T1 AnalogicTech, AAT1265IJS-3.6-T1 Datasheet

AAT1265IJS-3.6-T1

Manufacturer Part Number

AAT1265IJS-3.6-T1

Description

Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package

Manufacturer

AnalogicTech

Datasheet

1.AAT1265IJS-3.6-T1.pdf (13 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

AAT1265IJS-3.6-T1

Manufacturer:

ANALOGIC

Quantity:

20 000

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General Description

The AAT1265 is designed for single-cell or dual-cell alka-

line, NiMH, or NiCd or single-cell lithium-ion/polymer

(Li-Ion) battery-powered applications. It is a high effi-

ciency, synchronous, fixed frequency, step-up converter

with true output disconnect during shutdown (<1.0μA),

start-up inrush current limit, and short-circuit protection.

The high 2MHz switching frequency and completely inte-

grated control circuitry minimize the total solution foot-

print area while maintaining excellent regulation, ripple,

and transient response throughout the full load range.

Light load switching frequency modulation and low qui-

escent current maintain high efficiency performance for

light load and sleep mode conditions.

With a 1A peak switch current limit, the AAT1265 is

capable of delivering 100mA to the load with a single AA

cell, up to 250mA from a dual AA cell, or up to 400mA

from a single-cell lithium-ion battery. The device has a

1.0V start-up voltage with operation down to 0.8V.

The AAT1265 is available in a Pb-free, space-saving

2.0x2.1mm 8-pin SC70JW package and is rated over the

-40°C to +85°C temperature range.

Typical Application

SwitchReg

1265.2009.08.1.5

4.7μF

2.2μH

VIN

AAT1265

Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package

GND

OUT

VCC

OUT

w w w . a n a l o g i c t e c h . c o m

4.7μF

Features

• 100mA Output from a Single AA Cell Input

• 250mA Output from a Dual AA Cell Input

• 400mA Output from a Single Lithium-Ion Cell Input

• V

• Up to 93% Efficiency

• Low Start-Up Voltage: 1.0V Typical

• Internal Synchronous Rectifier

• Current Mode Control with Internal Feedback and

• 2MHz Fixed Switching Frequency

• 1A Current Limit

• Maintains High Efficiency Over the Output Current

• Low 40μA No Load Bias Current

• True Load Disconnect

• Short-Circuit and Over-Current Protection

• Inrush Current Limit and Soft Start

• Low Shutdown Current: <1.0μA

• -40°C to +85°C Temperature Range

• 2.0x2.1mm SC70JW-8 Package

Applications

• Bluetooth

• Digital Cameras

• Medical Instruments

• Mobile Handsets

• MP3 and Portable Music Players

Compensation

Range for Improved Battery Life

Operation Range: 0.8V to V

100

0.1

Headsets

Dual-Cell to 3.3V Efficiency

= 3.0V

1.0

PRODUCT DATASHEET

vs. Output Current

Output Current (mA)

= 2.4V

AAT1265

10.0

OUT

= 2.0V

100.0

1000.0

Related parts for AAT1265IJS-3.6-T1

AAT1265IJS-3.6-T1 Summary of contents

Page 1

SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM General Description The AAT1265 is designed for single-cell or dual-cell alka- line, NiMH, or NiCd or single-cell lithium-ion/polymer (Li-Ion) battery-powered applications high effi- ciency, synchronous, fixed ...

Page 2

SwitchReg SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM TM Pin Descriptions Pin # Symbol Function 1 VCC Bias supply voltage after start-up and feedback to the output ...

Page 3

SwitchReg SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM TM Absolute Maximum Ratings Symbol Description V VIN, OUT, VCC, EN GND N T Operating Junction Temperature ...

Page 4

SwitchReg SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM TM Electrical Characteristics V = 1.2V -40°C to +85°C, unless otherwise noted. Typical values are T IN ...

Page 5

SwitchReg SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM TM Typical Characteristics Single-Cell to 3.3V Efficiency 100 1. 1.2V IN ...

Page 6

SwitchReg SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM TM Typical Characteristics 3. Efficiency 100 0 Output Current (mA) Minimum ...

Page 7

SwitchReg SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM TM Typical Characteristics Switching Frequency vs. Temperature 0.5 0.0 -0.5 -1.0 -1.5 -2.0 -2.5 -40 - Temperature ...

Page 8

SwitchReg SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM TM Typical Characteristics Soft-Start Inrush Current (V = 1.2V 40mA 3.3V) IN OUT OUT 4 ...

Page 9

SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM Functional Block Diagram VCC Voltage Reference GND Functional Description The AAT1265 synchronous step-up converter is targeted for single- or dual-cell alkaline, NiMH, and NiCd and single-cell lithium-ion/polymer battery applications. ...

Page 10

SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM frequency (Light Load) mode to reduce the dominant switching losses. In addition to Light Load operation, a zero current comparator blocks reverse current in the P-channel synchronous MOSFET, forcing ...

Page 11

SwitchReg SwitchReg Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package TM TM Figure 1: AAT1265 Evaluation Board Top Side. 1265.2009.08.1.5 1265.2009.08.1.5 Figure 2: Component Placement. Figure 3: AAT1265 Evaluation Board ...

Page 12

... 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 speciﬁ cations or to discontinue any product or service without notice. Except as provided in AnalogicTech’s terms and conditions of sale, AnalogicTech assumes no liability whatsoever, and AnalogicTech disclaims any express or implied warranty relating to the sale and/or use of AnalogicTech products including liability or warranties relating to ﬁ ...

Page 13

... SC70JW-8 0.225 ± 0.075 2.00 ± 0.20 0.100 0.45 ± 0. PRODUCT DATASHEET PRODUCT DATASHEET AAT1265 AAT1265 2 AAT1265IJS-3.0-T1 3 AAT1265IJS-3.3-T1 3 AAT1265IJS-3.6-T1 3 AAT1265IJS-5.0-T1 3 0.048REF 4° ± 4° 2.10 ± 0. ...

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