AAT2601 Analogic Corporation, AAT2601 Datasheet
AAT2601
Manufacturer Part Number
AAT2601
Description
Manufacturer
Analogic Corporation
Datasheet
1.AAT2601.pdf
(38 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AAT2601BIIH-T1
Manufacturer:
KIONIX
Quantity:
34 000
General Description
The AAT2601 is a member of AnalogicTech’s Total Power
Management IC
a single-cell Lithium Ion/Polymer battery charger, a fully
integrated step-down converter and 5 low dropout (LDO)
regulators. The device also includes 2 load switches for
dynamic power path/sleep mode operation, making it
ideal for small handheld portable GSM or CDMA mobile
telephones.
The battery charger is a complete thermally regulated
constant current/constant voltage linear charger. It
includes an integrated pass device, reverse blocking pro-
tection, high accuracy current and voltage regulation,
charge status, and charge termination. The charging
current, charge termination current, and recharge volt-
age are programmable with an external resistor and/or
by a standard I
The step-down DC/DC converter is integrated with internal
compensation and operates at a switching frequency of
1.5MHz, thus minimizing the size of external components
while keeping switching losses low and efficiency greater
than 95%.
using the I
The five LDOs offer 60dB power supply rejection ratio
(PSRR) and low noise operation making them suitable for
powering noise-sensitive loads.
All six voltage regulators operate with low quiescent cur-
rent. The total no load current when the step-down con-
verter and 2 LDOs are enabled is only 170μA.
The AAT2601 is available in a thermally enhanced low
profile 5x5x0.8mm 36-pin TQFN package.
2601.2008.01.1.0
2
C interface.
All LDO output voltages are programmable
2
TM
C interface.
(TPMIC
TM
) product family. It contains
w w w . a n a l o g i c t e c h . c o m
Total Power Solution for Portable Applications
Features
• Voltage Regulator V
• Complete Power Integration
• Low Standby Current
• One Step-Down Buck Converter (Core)
• Five LDOs Programmable with I
• One Battery Charger
• Adapter OK (ADPP) and Reset (RESET) Timer Outputs
• Separate Enable Pins for Supply Outputs
• Over-Current Protection
• Over-Temperature Protection
• 5x5mm TQFN55-36 Package
Applications
• Digital Cameras
• GSM or CDMA Cellular Phones
• Handheld Instruments
• PDAs and Handheld Computers
• Portable Media Players
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Integrated Load Switches to Power Converters from
AC Adapter or Battery Automatically
170μA (typ) w/ Buck (Core), LDO1 (PowerDigital),
and LDO2 (PowerAnalog) Active, No Load
1.8V, 300mA Output
1.5MHz Switching Frequency
Fast Turn-On Time (120μs typ)
LDO1: 3.0V, 300mA (PowerDigital)
LDO2: 3.0V, 150mA (PowerAnalog or PLL)
LDO3: 3.0V, 150mA (TCXO)
LDO4: 3.0V, 150mA (TX)
LDO5: 3.0V, 150mA (RX)
PSRR: 60dB@10kHz
Noise: 50μVrms for LDO3, LDO4, and LDO5
Digitized Thermal Regulation
Charge Current Programming up to 1.4A
Charge Current Termination Programming
Automatic Trickle Charge for Battery Preconditioning
(2.8V Cutoff)
PRODUCT DATASHEET
IN
Range: 4.5V to 6V
AAT2601178
2
C
1