AAT1149 Analogic Corporation, AAT1149 Datasheet - Page 4

• Manufacturer Part Number: AAT1149
• Manufacturer: Analogic Corporation

Electrical Characteristics
V
1. The AAT1149 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
4
Step-Down Converter
EN
IN
by design, characterization, and correlation with statistical process controls.
Symbol
R
R
ΔV
= 3.6V, T
I
V
V
V
I
DS(ON)H
LXLEAK
V
V
DS(ON)L
V
F
T
I
SHDN
T
V
I
UVLO
EN(H)
I
OUT
EN(L)
Linereg
T
LIM
OSC
OUT
OUT
I
OUT
HYS
EN
SD
Q
IN
S
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
Description
Input Voltage
UVLO Threshold
Output Voltage Tolerance
Adjustable Output Voltage Range
Quiescent Current
Shutdown Current
P-Channel Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
LX Leakage Current
Line Regulation
Out Threshold Voltage Accuracy
Out Leakage Current
Start-Up Time
Oscillator Frequency
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Enable Threshold Low
Enable Threshold High
Input Low Current
1
Conditions
V
Hysteresis
V
I
V
No Load
V
V
V
V
0.6V Output, No Load
T
0.6V Output
From Enable to Output
Regulation
T
V
OUT
A
A
IN
IN
IN
EN
IN
EN
IN
IN
= 25°C
= 25°C
Rising
Falling
= 2.7V to 5.5V
= 5.5V, V
= 2.7V to 5.5V
= GND
= GND
= V
= 0 to 400mA,
OUT
400mA Step-Down Converter
= 5.5V
LX
= 0 to V
IN
,
3MHz Fast Transient
A
= 25°C.
Min
-3.0
-1.0
600
591
2.7
1.8
1.0
1.4
Typ
0.45
0.40
100
600
140
0.1
3.0
45
70
15
Max Units
609
5.5
2.7
3.0
1.0
0.2
0.6
1.0
V
70
1149.2006.11.1.0
1
IN
MHz
%/V
mV
mA
mV
μA
μA
μA
μA
μA
°C
°C
μs
%
Ω
Ω
V
V
V
V
V
V