AME5282 Datasheet, PDF (7/21 Pages) Analog Microelectronics – Rectified Step-Down Converter

AME
AME5282
n Electrical Specifications
V_IN=5V, T_A=25^oC, unless otherwise noted.
Parameter
Input Voltage
Input UVLO
Symbol
V_IN
V_UVLO
Quiescent Current
I_Q
Shutdown Current
Feedback Voltage
Feedback Current
Load Regulation
Line Regulation
EN Voltage High
EN Voltage Low
EN Leakage Current
I_SHDN
V_FB
I_{F B}
REG_LOAD
REG_LINE
V_EN
I_ENLK
Switching Frequency
F_SW
High-side Switch Current Limit
Error Amp Transconductance
Switch Leakage Current
G_EA
I_SWLK
High-side Switch On Resistance R_DSON,HI
Low-side Switch On Resistance R_DSON,LO
Thermal Shutdown Protection
OTP
OTH
2A, 300KHz ~ 2MHz Synchronous
Rectified Step-Down Converter
Test Condition
V_EN=5V, V_FB=0.7V
(No Switching)
V_EN=0V
0A<I_OUT<2A
2.7V<V_IN<5.5V
V_EN=3V
RFREQ=NC
R_FREQ=120K Ω
R_FREQ=47K Ω
R_FREQ=18KΩ
V_SW=0V, V_EN=0V
Rising
Hysteresis
Min Typ Max Units
2.5
5.5
V
2.3
V
600
µA
1
µA
0.784 0.8 0.816 V
-50
50
nA
0.25
%
0.25
%/V
1.4
V
0.4
V
0.1
1
µA
240 300 360 KHz
480 600 720 KHz
0.8
1
1.2 MHz
1.6
2
MHz
3.3 3.7
A
400
µA/V
0.1
20
µA
130
mΩ
90
mΩ
160
o_C
20
o_C
Rev. A.02
7