Preliminary
uP7718
Electrical Characteristics
Parameter
Symbol
Test Conditions
Min
Typ Max Units
Feedback Voltage
0mA < IOUT < 3.0A, VCNTL = VIN = VEN = 5.0V,
Load Regulation
VREF(LOAD)
--
0.1
0.5
%/A
V
OUT = VREF
Load Regulation Over
Temperature
0mA < IOUT < 3.0A, VCNTL = VIN = VEN = 5.0V,
VREF(TOTAL)
--
--
--
0.5
54
3
--
--
%
V
OUT = VREF
,
-40OC < TJ < 125OC, by design
On Resistance
RDS(ON) IOUT = 100mA, VCNTL = VEN = 5.0V, VOUT = 1.6V
mΩ
mV
IOUT = 3.0A, VCNTL = VEN = 5.0V, VOUT = 1.6V,
by design
Dropout Voltage
VDROP
178
VOUT Pull Low
Resistance
VCNTL = VIN = 5.0V, VEN = 0V,
--
60
--
Ω
Enable
Enable High Level
Disable Low Level
EN Source Current
EN Input Impedance
VEN
VSD
0.9
--
--
--
--
0.5
--
V
V
IEN
VEN = 0V, VCNTL = 5.0V
--
5
uA
KΩ
ZEN
--
500
--
Output Voltage Ramp
Up Time
--
1
--
ms
PWROK
FB Power OK
Threshold
VPOKTH
IOUT = 0A, VCNTL = VIN = VEN = 5.0V, VOUT = VREF
--
92
--
%
Power OK Hysteresis
POK Delay Time
VPOKHYS
IOUT = 0A, VCNTL = VIN = VEN = 5.0V, VOUT = VREF
From VOUT > 92% VNOM to POK rising
--
1
8
2
--
4
%
ms
Overcurrent Protection
OCP Threshold Level
IOCP
ISC
VCNTL = VIN = VEN = 5.0V, VOUT = VREF
VCNTL = VIN = VEN = 5.0V, VOUT = 0V
4.7
--
5.7
6.7
--
A
Averaged Output
Short Circuit Current
450
mA
Thermal Protection
Thermal Shutdown
Temperature
TSD
IOUT = 0A, VCNTL = VIN = VEN = 5.0V, VOUT = VREF
IOUT = 0A, VCNTL = VIN = VEN = 5.0V, VOUT = VREF
--
--
170
50
--
--
OC
OC
Thermal Shutdown
Hysteresis
TSDHYS
Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device.
These are for stress ratings. Functional operation of the device at these or any other conditions beyond those
indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may remain possibility to affect device reliability.
Note 2. Devices are ESDsensitive. Handling precaution recommended.
Note 3. θJA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of
JEDEC 51-7 thermal measurement standard.
Note 4. The device is not guaranteed to function outside its operating conditions.
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. P00, File Name: uP7718-DS-P0000
6
UNITPOWER [ ShenZhen XinDeYi Electronics Co., Ltd. ]
