PRODUCT DATASHEET
AAT2786
SystemPower
TM
Electrical Characteristics
1
1.5A Step-Down Converter and 150mA LDO
V
IN
=3.6V; T
A
= -40
o
C to 85
o
C unless otherwise noted. Typical values are at T
A
= 25
o
C.
Symbol
Description
Conditions
Min
2.5
0.6
V
IN
Rising
Hysteresis
V
IN
Falling
I
OUT
= 0A to 1.5A, V
IN
= 2.4V to 5.5V
No Load
V
EN
= GND
150
1.7
-3.0
42
1.8
0.120
0.085
V
IN
= 5.5V, V
LX
= 0 to VIN
I
LOAD
= 0A to 1.5A
V
IN
= 2.4V to 5.5V
No Load, T
A
= 25°C
V
OUT
= 1.0V
T
A
= 25°C
From Enable to Output Regulation
1.12
0.60
1.4
150
140
15
0.6
1.4
V
IN
= V
EN
= 5.5V
1.0
0.591
1.0
0.5
0.2
0.60
0.609
0.2
1.68
3.0
3.0
90
1.0
Typ
Max
5.5
Units
V
V
Step-Down Converter
V
IN
Input Voltage
V
OUT
Output Voltage Range
V
UVLO
V
OUT
I
Q
I
SHDN
I
LIM
R
DS(ON)H
R
DS(ON)L
I
LXLEAK
ΔV
LOADREG
ΔV
LINEREG
/
ΔV
IN
V
FB
UVLO Threshold
Output Voltage Tolerance
Quiescent Current
Shutdown Current
Current Limit
High Side Switch On-Resistance
Low Side Switch On-Resistance
LX Leakage Current
Load Regulation
Line Regulation
V
IN
2.5
V
mV
V
%
µA
µA
A
Ω
Ω
µA
%
%/V
V
µA
MHz
µs
°C
°C
V
V
µA
Feedback Threshold Voltage Accuracy
(Adjustable Version)
I
FB
FB Leakage Current
Internal Oscillator Frequency
F
OSC
Synchronous Clock
Start-Up Time
T
S
T
SD
Over-Temperature Shutdown Threshold
T
HYS
Over-Temperature Shutdown Hysteresis
MODE/SYNC
V
MODE/SYNC(L)
Enable Threshold Low
V
MODE/SYNC(H)
Enable Threshold High
I
MODE/SYNC
Enable Leakage Current
1. The AAT2786 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
4
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