AME5258 Datasheet, PDF (7/17 Pages) AMETHERM Circuit Protection Thermistors – 1.5MHz, 600mA Synchronous Buck Converter

AME
AME5258
1.5MHz, 600mA
Synchronous Buck Converter
n Electrical Specifications
T_A=25^oC. V_IN=3.6V unless otherwise specified.
Parameter
Input Volatge
Feedback Current
Regulated Feedback
Voltage
Reference Voltage
Line Regulation
Symbol
V_{I N}
IFB
V _FB
∆VFB
Test Condition
AME5258-BEVADJ
VIN=2.5V to 5.5V
AME5258-BEVADJ
Regulated Output Voltage ∆V_OUT
Output Voltage
Line Regulation
Switch Current Limit
Output Voltage
Load Regulation
REGLINE
I_CL
V_LOADREG
VO U T=1. 2V,
IOUT=100mA
VOUT=1.8V,
I_OUT=100mA
V_OUT=2.5V,
IOUT=100mA
VOUT=3.3V,
IOUT=100mA
VIN=2.5V to 5.5V
V_IN=3V, V_FB=0.5V
Duty Cycle < 35%
V_IN=3V, V_OUT=90%
Duty Cycle < 35%
AME5258-AEVxxx
AME5258-BEVADJ
AME5258-AEVxxx
Shutdown Current
ISD
VEN =0V, VIN=4.2V
Quiescent Current
IQ
V FB=0.5V or V OUT=90%
VEN=VI N=4.2V
Oscillator Frequency
fOSC
RDSON of P-Channel FET
R_DSON of N-Channel FET
RDSON(P)
R_DSON(N)
VIN=2.5V & IOUT=100mA
V_FB=0V or V_OUT=0V
ISW=100mA
I_SW= -100mA
Switch Leakage Current
I_SW
VEN =0V,
V_SW=0V or 5V,V_IN=5V
EN Input Threshold (High) V EH
EN Input Threshold (Low)
VEL
EN Input Current
I_EN
Min Typ
2.5
0.5880 0.6
Max
5.5
±30
Units
V
nA
0.6120 V
0.04
0.4
%/V
1.164 1.2 1.236
1.746 1.8 1.854
V
2.425 2.5 2.575
3.201 3.3 3.399
0.04
0.4
%/V
0.75 1
A
0.5
%
0.1
1
µA
300
450
1.2 1.5
1.8
MHz
210
kHz
0.4
0.6
Ω
0.35 0.5
Ω
±1
µA
1.5
V
0.3
±1
µA
Rev.A.05
7