AAT1147 AAT, AAT1147 Datasheet - Page 4

• Manufacturer Part Number: AAT1147
• Description: Step-Down Converter
• Manufacturer: AAT

Electrical Characteristics
T
1. The AAT1147 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
4
Step-Down Converter
EN
A
by design, characterization, and correlation with statistical process controls.
ΔV
= -40°C to +85°C, unless otherwise noted. Typical values are T
Symbol
R
R
I
V
V
V
LXLEAK
I
DS(ON)H
V
V
DS(ON)L
V
F
T
LINEREG
I
SHDN
T
V
I
UVLO
EN(H)
I
OUT
T
EN(L)
I
LIM
OSC
HYS
OUT
OUT
OUT
EN
SD
Q
IN
S
Description
Input Voltage
UVLO Threshold
Output Voltage Tolerance
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
High Efficiency, Low Noise, Fast Transient
Conditions
V
Hysteresis
V
I
V
No Load
EN = AGND = PGND
V
EN = GND
V
0.6V Output, No Load,
T
0.6V Output
From Enable to Output
Regulation
V
OUT
A
IN
IN
IN
IN
IN
IN
= 25°C
Rising
Falling
= 2.7V to 5.5V
= 5.5V, V
= 2.7V to 5.5V
= V
= 0 to 400mA,
OUT
= 5.5V
LX
= 0 to V
400mA Step-Down Converter
A
= 25°C, V
IN
,
IN
Min
-3.0
600
591
-1.0
= 3.6V.
2.7
1.8
0.6
1.0
1.4
0.45
0.40
Typ
100
160
600
150
140
0.1
1.4
15
Max
300
609
5.5
2.7
3.0
V
1.0
0.2
2.0
0.6
1.0
1
1147.2006.05.1.0
IN
Units
MHz
%/V
mV
mA
mV
µA
µA
µA
µA
µA
°C
°C
µs
%
Ω
Ω
V
V
V
V
V
V