AAT1151 AAT, AAT1151 Datasheet - Page 4

• Manufacturer Part Number: AAT1151
• Description: DC/DC Converter
• Manufacturer: AAT

Electrical Characteristics
V
1. The AAT1151 is guaranteed to meet performance specifications over the -40°C to +85°C operating range and is assured by design,
4
∆V
IN
characterization, and correlation with statistical process controls.
OUT
= V
∆V
V
Symbol
R
R
UVLO(HYS)
OUT
V
V
V
I
DS(ON)H
V
DS(ON)L
F
(V
T
CC
SHDN
T
I
V
EN(H)
UVLO
EN(L)
I
LIM
OSC
OUT
I
I
HYS
η
IH
SD
IL
Q
IN
OUT
/V
= V
OUT
*∆V
P
IN
= 5V, T
)
Description
Input Voltage Range
Output Voltage Tolerance
Under-Voltage Lockout
Under-Voltage Lockout Hysteresis
Input Low Current
Input High Current
Quiescent Supply Current
Shutdown Current
Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
Efficiency
Load Regulation
Line Regulation
Oscillator Frequency
Enable Threshold Low
Enable Threshold High
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
A
= -40°C to 85°C, unless otherwise noted. Typical values are at T
1
850kHz 700mA Synchronous Buck DC/DC Converter
Conditions
V
I
V
V
V
V
No Load, V
T
V
T
T
T
I
V
V
T
OUT
OUT
A
A
A
A
A
IN
IN
IN
IN
IN
EN
IN
IN
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= V
Rising
Falling
= V
= V
= 4.2V, I
= 2.7V to 5.5V
= 0 V, V
= 0 to 700mA
= 300mA, V
OUT
FB
FB
= 5.5V
= 0 V
+ 0.2 to 5.5V,
FB
LOAD
IN
= 0 V, V
= 5.5V
IN
= 0 to 700mA
= 3.5V
IN
= 4.2V
Min
-3.0
600
2.7
1.2
1.2
1.4
Typ
±0.9
±0.1
250
210
100
850
140
110
92
15
A
= 25°C.
AAT1151
Max Units
1200
+3.0
300
150
150
5.5
2.5
1.0
1.0
1.0
0.6
1151.2005.11.1.4
%/V
KHz
mΩ
mΩ
mV
µA
µA
µA
µA
°C
°C
%
%
%
V
V
A
V
V