ame5250 AME, Inc., ame5250 Datasheet - Page 7

• Manufacturer Part Number: ame5250
• Description: 1a, 1.5mhz Synchronous Step-down Converter
• Manufacturer: AME, Inc.

n Electrical Specifications
Rev. A.02
AME5250
V
IN
Input voltage
Output Voltage Accuracy
Adjustable Output Range
Feedback Voltage
Feedback Pin Bias Current
Quiescent Current
Shutdown Current
Switch Frequency
High-side Switch On-Resistance
Low-side Switch On-Resistance
Switch Current Limit
EN High (Enabled the Device)
EN Low (Shutdown the Device)
Input Undervoltage Lockout
Input Undervoltage Lockout
Hysteresis
Thermal Shutdown Temperature
Maximum Duty Cycle
SW Leakage Current
=3.6V, V
AME
Parameter
OUT
=2.5V, V
FB
=0.6V, L=2.2 H, C
V
R
R
Symbol
UVLO,HYST
DS,ON, LHI
DS,ON, LO
V
V
V
I
I
SW,CL
OTP
D
V
V
SHDN
f
V
V
OSC
EN,LO
I
EN,HI
UVLO
FB
I
MAX
out
FB
Q
IN
OUT
IN
=4.7 F, C
Shutdown, temperature increasing
V
For Adjustable OutputVoltage
IN
For Fixed Output Voltage
=2.5 to 5.5V, in PWM mode
OUT
I
I
SW
SW
I
OUT
EN=0V, V
=10 F, T
V
Test Condition
=200mA, V
=200mA, V
V
V
V
SW
IN
IN
IN
=0mA, V
rising edge
V
=2.5 to 5.5V
=2.5 to 5.5V
=2.5 to 5.5V
V
=0V or 5.0V
EN
FB
=GND
=V
A
IN
=25
IN
1A, 1.5MHz Synchronous
=5.0V
FB
IN
IN
=3.6V
=3.6V
=1V
o
C, I
Step-Down Converter
MAX
=1A unless otherwise specified.
0.588
Min
V
100
2.5
-50
1.2
1.4
1.5
-3
-1
FB
0.28
0.25
Typ
0.6
0.1
1.5
0.1
20
1.6
1.8
160
V
0.612
Max
5.5
IN
1.8
50
35
0.4
3
1
1
-0.2
Units
MHz
n
o
%
V
V
V
A
V
V
V
V
C
A
A
A
7