AAT1152 Advanced Analogic Technologies, AAT1152 Datasheet - Page 4

• Manufacturer Part Number: AAT1152
• Description: 850kHz 1A Synchronous Buck DC/DC Converter
• Manufacturer: Advanced Analogic Technologies

Electrical Characteristics
values are at T
4
V
OUT
Symbol
V
V
R
R
V
UVLO(hys)
OUT
V
V
V
DSON(H)
I
TH(POK)
R
V
F
DSON(L)
T
(V
SHDN
T
I
V
EN(H)
I
UVLO
EN(L)
OUT
LIM
I
OSC
HYS
EN
POK
Q
SD
IN
OUT
/V
OUT
* V
A
IN
= 25°C)
) Load Regulation
Description
Operation Voltage
DC Output Voltage Tolerance
Current Limit
Quiescent Supply Current
Line Regulation
Oscillator frequency
High-side Switch On-resistance
Low-side Switch On-resistance
Enable input high voltage
Enable input low voltage
Enable Pin Leakage Current
Undervoltage Lockout
Undervoltage Lockout Hysteresis
Over Temp Shutdown Threshold
Over Temp Shutdown Hysteresis
Shutdown current
Power Good Threshold
Power Good Pull-Down
On-Resistance
(V
850kHz 1A Synchronous Buck DC/DC Converter
IN
= V
CC
= V
Conditions
I
T
No load, V
V
V
T
T
T
V
V
V
V
V
V
V
V
OUT
P
A
A
A
A
IN
IN
IN
IN
EN
IN
IN
EN
FB
FB
= 25°C
= 25°C
= 25°C
= 25°C
= 5V, T
rising
falling
= 4.2V, I
= 2.7 to 5.5V
= 2.7 to 5.5V
= 2.7 to 5.5V
Ramping Up
Ramping Down
= 5.5V
= 0, V
= 500mA
IN
FB
A
LOAD
= -40 to 85°C unless otherwise noted. Typical
= 5.5V
= 0
T
Full temp
= 0 to 1A
A
= 25°C
Min
-1.0
-2.0
700
2.7
1.2
1.4
1.2
Typ
160
850
100
250
140
110
0.2
15
90
88
3
4
AAT1152
1000
Max
+1.0
+2.0
300
150
150
5.5
0.6
2.5
1
1
1152.2003.01.0.9
Units
% of
%/V
kHz
m
m
V
mV
µA
µA
µA
°C
°C
%
%
V
A
V
V
V
FB