AME, Inc.
White LED Boost Converter
In Tiny Package
AME5142
n Electrical Specifications
VIN = 4.2V, EN = VIN, TA = 25oC, Unless otherwise noted.
Test Condition
Parameter
Input Voltage
Symbol
Min
Typ
Max Units
VIN
2.7
5.5
1
V
Switching, VFB = 0V
0.85
180
mA
Quiescent Current
IQ
Not Switching, VFB = 0.2V
250
A
m
Feedback Trip Point
FB Pin Bias Current
Switch Current Limit
Switch On-Resistance
SW Leakage Current
Swich frequency
VFB
IFB
0.137 0.15 0.163
V
VFB = 0.2V
0.1
850
0.7
1
1
A
m
ICL
650
1000
1.4
10
mA
RDSON
ISW
ISW = 100mA, VFB = 0.2V
VSW = 20V
W
A
m
fSW
VFB = 0.1V
0.9
88
1.2
92
1.5
MHz
%
Maximum Duty Cycle
Shutdown Supply Current
Dmax
ISD
VFB = 0V
VEN = 0V
0.01
160
140
26
1
A
m
OTP
TRS
Shutdown, temperature increasing
Restore, temperature decreasing
Rising edge
oC
Over Temperature Protection
Over Voltage Protection
Input Undervoltage Lockout
EN Input Low
OVP
UVP
VEL
24
28
2.65
0.4
V
V
VIN rising or falling
2.35
2.5
V
EN Input High
VEH
IEN
1.5
EN = GND or VIN
EN Input Current
0.1
2
A
m
Rev.A.01
7
AME [ ANALOG MICROELECTRONICS ]
