ame5252 AME, Inc., ame5252 Datasheet - Page 9

• Manufacturer Part Number: ame5252
• Description: Dual Synchronous, 600ma, 1.5mhz Step-down Dc/dc Converter
• Manufacturer: AME, Inc.

n Electrical Specifications
AME5252
Rev.A.01
V
IN
Input Voltage
FB Pin Input Current
Feedback Trip Point
Reference voltage line regulation
Output voltage Load regulation
Quiescent Current
Shutdown Current
Switching Frequency
Top Switch On-Resistance
Bottom switch On-Resistance
Switch Current Limit
Switch Leakage Current
Power-on Reset Threshold
Power-on Reset on-resistance
Power-on Reset delay
EN Input Threshold
(High) (Enable the device)
EN Input Threshold
(Low) (Shutdown)
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
=3.6V, EN =V
Parameter
AME
IN
, T
A
= 25
o
C, C
IN
=10 F, I
EN Threshold
REG
REG
Symbol
PORB
R
I
OTP
OTH
SHDN
f
V
LOAD
V
OSC
DSON
I
I
I
SW
FB
I
C L
LINE,FB
FB
Q
IN
LOAD
=0A, unless otherwise noted.
V
Shutdown, temperature increasing
IN
Restore, temperature decreasing
V
=3.6V, V
V
FBX
V
Dual Synchronous, 600mA, 1.5MHz
FBX
FB1
C
Ramping Down, SYNC=0V
V
Ramping UP, SYNC=0V
=V
-40
IN
Test Condition
FB2
=3V, V
o
EN
C≦ T
=0.5V (Switching)
EN=0V
=0V, V
Step-Down DC/DC Converter
A
OUT
≦ +85
SW
=1.2V
=0V or 3.6V
o
C
0.588
0.585
0.95
Min
2.5
1.2
0.3
0.05
0.35
Typ
600
-8.5
100
175
160
0.6
0.6
0.3
0.1
1.5
1.2
0.1
8.5
30
20
0.612
0.615
Max
0.55
800
200
5.5
0.5
1.8
1.5
1
1
Units
MHz
%/V
ms
nA
o
%
%
%
V
V
V
A
V
V
C
A
A
A
9