AAT2601 Analogic Corporation, AAT2601 Datasheet - Page 19

• Manufacturer Part Number: AAT2601
• Manufacturer: Analogic Corporation

Functional Block Diagram
Functional Description
The AAT2601 is a complete power management solution.
It seamlessly integrates an intelligent, stand-alone CC/
CV (Constant Current/Constant Voltage), linear-mode
single-cell battery charger with one step-down Buck con-
verter and five low-dropout (LDO) regulators to provide
power from either a wall adapter or a single-cell Lithium
2601.2008.01.1.0
2601.2008.01.1.0
EN_HOLD
USE_USB
EN_TEST
ON_KEY
EN_KEY
SYSOUT
ENBAT
CHGIN
AVIN2
SDA
EN2
EN3
EN4
EN5
SCL
500mΩ
Control
Enable
SYSOUT
and
I
2
LDO
C
w w w . a n a l o g i c t e c h . c o m
w w w . a n a l o g i c t e c h . c o m
Charger
Control
Total Power Solution for Portable Applications
Total Power Solution for Portable Applications
UVLO
Ion/Polymer battery.
LDO regulators and DC-DC converter to operate from the
best available power source of either an AC wall adapter,
USB port supply or battery.
If only the battery is available, then the voltage regula-
tors and converter are powered directly from the battery
through a 100mΩ load switch. (The charger is put into
sleep mode and draws less than 1μA quiescent current.)
Ref
VIN
Ref
Enable
100 mΩ
BUCK
PRODUCT DATASHEET
PRODUCT DATASHEET
VIN
REF
Internal load switches allow the
AAT2601178
AAT2601178
TS
OUTBUCK
PGND
CT
RESET
PVIN
CNOISE
AGND
ADPP
STAT
ISET
LX
AVIN1
BAT
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