AME5287 Datasheet, PDF (6/20 Pages) Analog Microelectronics – Rectified Step-Down Converter

AME
AME5287
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_FB
REG_LOAD
REG_LINE
V_EN
I_ENLK
Switching Frequency
F_SW
High-side Switch Current Limit
Error Amp Transconductance
Switch Leakage Current
High-side Switch On Resistance
Low-side Switch On Resistance
Thermal Shutdown Protection
G_EA
I_SWLK
R_DSON,HI
R_DSON,LO
OTP
OTH
3A, 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
R_FREQ=NC
R_FREQ=120K Ω
R_FREQ=47KΩ
R_FREQ=18KΩ
V_SW=0V, V_EN=0V
Rising
Hysteresis
Min Typ Max Units
3
5.5
V
2.3
V
600
µA
0.784 0.8
-50
0.25
0.25
1.4
0.1
240 300
480 600
0.8
1
1.6
2
3.7
400
0.1
130
1
0.816
50
0.4
1
360
720
1.2
20
µ_A
V
nA
%
%/V
V
V
µA
KHz
KHz
MHz
MHz
A
µ_A/V
µA
mΩ
90
m^Ω
160
o_C
20
o_C
6
Rev. A.01