AMS4154
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage
SW Voltage
BS Voltage
All Other Pins
-0.3V to +34V
-1V to VIN + 0.3V
V LX – 0.3V to V LX + 6V
-0.3V to +6V
Junction Temperature
Storage Temperature
Lead Temperature
+150°C
-65°C to +150°C
260°C
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at T
A
= 25
°C
and VIN=12V (unless otherwise noted).
PARAMETER
Feedback Voltage
Supply Current
Shutdown Supply Current
Current Limit
Current Sense to COMP
Transconductance
Oscillation Frequency
Maximum Duty Cycle
Minimum Duty Cycle
EN Threshold Voltage
EN Threshold Voltage
EN Threshold Hysteresis
Enable Current
Thermal Shutdown
5V REF Voltage
REF Load Regulation
REF Line Regulation
280
V
FB
= 1.0V
V
FB
= 1.5V
V
EN
Rising, Output ON
V
EN
Falling , Output OFF
V
EN
= 0V
I
REF
= 0
∆I
REF
= 0 to 1mA
I
REF
= 100µA, V
IN
= 6.5 to 32V
4.8
TEST CONDITIONS
0.6V
≤
V
IN
≤
32V, V
COMP
< 2V
V
EN
= 5V, V
FB
= 1.4V
V
EN
= 0V
2.5
Min.
0.588
AMS4154
Typ.
0.600
1.0
0.5
3.6
3.5
330
90
0
2.6
2.2
250
1.8
160
5.0
100
30
380
99
2.8
2.3
Max.
0.612
1.2
1
4.9
Units
V
mA
µA
A
A/V
KHz
%
%
V
V
mV
µA
ºC
V
mV
mV
2.5
5.2
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
