AME, Inc.
AME5142
n
Pin Configuration
SOT-25/TSOT-25
Top View
5
4
White LED Boost Converter
In Tiny Package
SOT-26/TSOT-26
Top View
AME5142AEEV
1. SW
2. GND
6
5
4
AME5142AEEY
1. SW
2. GND
AME5142
3. FB
4. EN
5. IN
AME5142
3. FB
4. EN
5. OVP
1
2
3
1
2
3
6. IN
* Die Attach:
Conductive Epoxy
* Die Attach:
Conductive Epoxy
n
Pin Description
AME5142AEEV
Pin Number
1
Pin Name
SW
Pin Description
Power Switch input.
This is the drain of the internal NMOS power switch. Minimize the metal
trace area connected to this pin to minimize EMI.
Ground.
Tie directly to ground plane.
Output voltage feedback input.
Connect the ground of the feedback network to an AGND (Analog Ground)
plane which should be tied directly to the GND pin.
Enable control input, active high.
The enable pin is an active high control. Tie this pin above 1.5V to enable
the device. Tie this pin below 0.4V to turn off the device.
Analog and Power input.
Input Supply Pin. Bypass this pin with a capacitor as close to the device
as possible.
2
GND
3
FB
4
EN
5
IN
Rev. A.01
3
AME, Inc.
AME5142
n
Pin Description
AME5142AEEY
White LED Boost Converter
In Tiny Package
Pin Number
1
Pin Name
SW
Pin Description
Power Switch input.
This is the drain of the internal NMOS power switch. Minimize the metal
trace area connected to this pin to minimize EMI.
Ground.
Tie directly to ground plane.
Output voltage feedback input.
Connect the ground of the feedback network to an AGND(Analog Ground)
plane which should be tied directly to the GND pin.
Enable control input, active high.
The enable pin is an active high control. Tie this pin above 1.5V to enable
the device. Tie this pin below 0.4V to turn off the device.
Over Voltage Protection.
Analog and Power input.
Input Supply Pin. Bypass this pin with a capacitor as close to the device
as possible.
2
GND
3
FB
4
EN
5
OVP
6
IN
4
Rev. A.01
AME, Inc.
AME5142
n
Ordering Information
AME5142 x x x x xxx x
Special Feature
Output Voltage
Number of Pins
Package Type
Operating Ambient Temperature Range
Pin Configuration
Operating Ambient
Temperature
Range
E: -40
O
C to 85
O
C
Number
of
Pins
V: 5
Y: 6
White LED Boost Converter
In Tiny Package
Pin
Configuration
A
(SOT-25)
(TSOT-25)
Package
Type
E: SOT-2X
Output Voltage
Special Feature
1. SW
2. GND
3. FB
4. EN
5. IN
1. SW
2. GND
3. FB
4. EN
5. OVP
6. IN
ADJ: Adjustable
Y: Lead free & Low
profile
Z: Lead free
A
(SOT-26)
(TSOT-26)
n
Ordering Information
Part Number
AME5142AEEYADJZ
AME5142AEEYADJY
AME5142AEEVADJZ
AME5142AEEVADJY
Marking*
BJGww
BJGww
BJHww
BJHww
Output Voltage
ADJ
ADJ
ADJ
ADJ
Package
SOT-26
TSOT-26
SOT-25
TSOT-25
Operating Ambient
Temperature Range
-40
O
C to 85
O
C
-40
O
C to 85
O
C
-40
O
C to 85
O
C
-40
O
C to 85
O
C
Note: ww represents the date code and pls refer to Date Code Rule page on Package Dimension.
* A line on top of the first letter represents lead free plating such as BJGww.
Please consult AME sales office or authorized Rep./Distributor for the availability of package type.
Rev. A.01
5
AME, Inc.
AME5142
n
Absolute Maximum Ratings
Parameter
Input Supply Voltage
EN, FB Voltages
SW, OVP Voltage
ESD Classification
White LED Boost Converter
In Tiny Package
Symbol
V
IN
V
EN
,V
FB
V
SW,
V
OVP
Maximum
6
V
IN
30
B*
Unit
V
V
V
Caution: Stress above the listed in absolute maximum ratings may cause permanent damage to the device.
* HBM B: 2000V ~ 3999V
n
Recommended Operating Conditions
Parameter
Ambient Temperature Range
Junction Temperature Range
Storage Temperature Range
Symbol
T
A
T
J
T
STG
Rating
-40 to 85
-40 to 125
-65 to 150
Unit
o
C
n
Thermal Information
Parameter
Thermal Resistance*
(Junction to Case)
Thermal Resistance
(Junction to Ambient)
Internal Power Dissipation
Solder Iron (10Sec)**
Package
Die Attach
Symbol
θ
J
C
Maximum
81
Unit
SOT-25
TSOT-25
SOT-26
TSOT-26
o
C/W
Conductive Epoxy
θ
JA
P
D
260
400
350
mW
o
C
* Measure
θ
JC
on center of molding compound if IC has no tab.
** MIL-STD-202G 210F
6
Rev. A.01
AME, Inc.
AME5142
n
Electrical Specifications
V
IN
= 4.2V, EN = V
IN
, T
A
= 25
o
C, Unless otherwise noted.
Parameter
Input Voltage
Quiescent Current
Feedback Trip Point
FB Pin Bias Current
Switch Current Limit
Switch On-Resistance
SW Leakage Current
Swich frequency
Maximum Duty Cycle
Shutdown Supply Current
Over Temperature Protection
T
RS
Over Voltage Protection
Input Undervoltage Lockout
EN Input Low
EN Input High
EN Input Current
OVP
UVP
V
EL
V
EH
I
EN
EN = GND or V
IN
1.5
0.1
2
µ
A
Restore, temperature decreasing
Rising edge
V
IN
rising or falling
24
2.35
140
26
2.5
28
2.65
0.4
V
V
V
Symbol
V
IN
Switching, V
FB
= 0V
I
Q
V
FB
I
FB
I
CL
R
DSON
I
SW
f
SW
Dmax
I
SD
OTP
I
SW
= 100mA, V
FB
= 0.2V
V
SW
= 20V
V
FB
= 0.1V
V
FB
= 0V
V
EN
= 0V
Shutdown, temperature increasing
0.9
88
V
FB
= 0.2V
650
Not Switching, V
FB
= 0.2V
0.137
Test Condition
Min
2.7
0.85
180
0.15
0.1
850
0.7
1
1.2
92
0.01
160
1
Typ
Max
5.5
1
250
0.163
1
1000
1.4
10
1.5
Units
V
mA
µ
A
V
µ
A
mA
Ω
µ
A
MHz
%
µ
A
o
White LED Boost Converter
In Tiny Package
C
Rev. A.01
7
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