AME5252 Datasheet, PDF (9/18 Pages) Analog Microelectronics – Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Converter

AME
AME5252
Dual Synchronous, 600mA, 1.5MHz
Step-Down DC/DC Converter
n Electrical Specifications
V_IN=3.6V, EN =V_IN, T_A= 25^oC, C_IN=10µF, I_LOAD=0A, unless otherwise noted.
Parameter
Symbol
Test Condition
Min Typ Max Units
Input Voltage
FB Pin Input Current
Feedback Trip Point
V_IN
2.5
5.5 V
I_FB
30
nA
0.588 0.6 0.612 V
V_FB
-40^oC T_A +85^oC
0.585 0.6 0.615 V
Reference voltage line regulation REGLINE,FB
0.3 0.5 %/V
Output voltage Load regulation
Quiescent Current
Shutdown Current
Switching Frequency
Top Switch On-Resistance
Bottom switch On-Resistance
REG_LOAD
I_Q
I_SHDN
f_OSC
R_DSON
V_FB1=V_FB2=0.5V (Switching)
EN=0V
0.05
%
600 800 µA
0.1 1 µA
1.2 1.5 1.8 MHz
0.35 0.55 Ω
Switch Current Limit
Switch Leakage Current
Power-on Reset Threshold
Power-on Reset on-resistance
I_{C L}
I_SW
PORB
V_IN=3V, V_OUT=1.2V
0.95 1.2
A
V_IN=3.6V, V_EN=0V, V_SW=0V or 3.6V
0.1 1 µA
V_FBX Ramping UP, SYNC=0V
8.5
%
V_FBX Ramping Down, SYNC=0V
-8.5
%
100 200 Ω
Power-on Reset delay
C
EN Input Threshold
(High) (Enable the device)
EN Input Threshold
EN Threshold
(Low) (Shutdown)
175
ms
1.5 V
0.3
V
Thermal Shutdown Temperature
OTP
Shutdown, temperature increasing
160
o_C
Thermal Shutdown Hysteresis
OTH
Restore, temperature decreasing
20
Rev.C.01
9