ame5253 AME, Inc., ame5253 Datasheet - Page 7

• Manufacturer Part Number: ame5253
• Description: 1a, 1.5mhz Synchronous Step-down Converter
• Manufacturer: AME, Inc.

n Electrical Specifications
Rev.A.02
AME5253
Input voltage
Output Voltage Accuracy
Adjustable Output Range
Feedback Voltage
Feedback Pin Bias Current
Quiescent Current
(For Adjustable Output Voltage)
Quiescent Current
(For Fixed Output Voltage)
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
V
IN
=3.6V, V
Parameter
AME
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
SHDN
f
V
V
V
V
OSC
EN,LO
I
EN,HI
UVLO
FB
I
I
MAX
out
FB
Q
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
I
OUT
I
I
OUT
SW
SW
I
OUT
EN=0V, V
=0mA, in PFM mode
V
Test Condition
=200mA, V
=200mA, V
=10 F, T
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
=5.0V
FB
IN
IN
1A, 1.5MHz Synchronous
=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
35
1.6
1.8
160
V
0.612
Max
5.5
IN
1.8
50
35
40
0.4
3
1
1
-0.2
Units
MHz
n
o
%
V
V
V
A
V
V
V
V
C
A
A
A
A
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