Preliminary
Power On from V
IN
uP7718
Power On from V
CNTL
V
CNTL
(5V/Div)
Typical Operation Characteristics
V
IN
(1V/Div)
V
OUT
(0.5V/Div)
V
OUT
(0.5V/Div)
POK (5V/Div)
POK (5V/Div)
I
IN
(1A/Div)
I
IN
(1A/Div)
1ms/Div
V
CNTL
= 5V, V
IN
= 2.5V, C
OUT
= 470uF, No Load.
1ms/Div
V
CNTL
= 5V, V
IN
= 2.5V, C
OUT
= 470uF, No Load.
Turn On from EN
EN (5V/Div)
Load Transient Response
V
OUT
(20mV/Div)
V
OUT
(0.5V/Div)
POK (5V/Div)
I
OUT
(1A/Div)
I
IN
(1A/Div)
1ms/Div
V
CNTL
= 5V, V
IN
= 2.5V, C
OUT
= 470uF, No Load.
V
CNTL
20us/Div
= 5V, C
OUT
= 10uF, I
OUT
= 0.1A to 3.0A
Dropout Voltage vs. Output Current
Current Limit
1.2V
Dropout Voltage (mV)
200mV
150mV
100mV
50mV
0mV
0A
0.5A 1.0A 1.5A 2.0A 2.5A 3.0A
Output Voltage (V)
1.0V
0.8V
0.6V
0.4V
0.2V
0V
0A
1.0A 2.0A 3.0A
4.0A 5.0A 6.0A
Output Current (A)
Output Current (A)
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. P00, File Name: uP7718-DS-P0000
7
UNITPOWER [ Unitpower Technology Limited ]
