FAN1950 Datasheet, PDF (3/11 Pages) Fairchild Semiconductor – 1.5A Low-Voltage Low-Dropout Regulator

FAN1950/FAN1951
Absolute Maximum Ratings
Absolute maximum ratings are the values beyond which the device may be damaged or have its useful life impaired.
Functional operation under these conditions is not implied.
Parameter
Supply Voltage: IN
Enable Voltage: EN
FLAG voltage: FLAG
Junction Temperature (TJ)
Storage Temperature
Lead Soldering Temperature, 10 seconds
Power Dissipation (PD)
Min.
-0.2
-0.2
-0.2
–55
–65
Typ.
Max.
15
15
15
150
150
300
Internally
Limited
Units
V
V
V
°C
°C
°C
W
Recommended Operating Conditions
Parameter
Supply Voltage
Package Thermal Resistance (θJC)
Junction Operating Temperature
Conditions
TO-252
Min.
2.25
-40
Typ.
3
Max.
14
125
Units
V
°C/W
°C
Electrical Specifications
(VIN = VOUT + 1V, VEN = 2.5V, Tj = +25°C unless specified otherwise)
The • denotes specifications which apply over the full operating temperature range.
Parameter
Output Voltage (VOUT) Tolerance
Line Regulation^1,2
Load Regulation^1,2
Dropout Voltage³
Conditions
10mA ≤ IOUT ≤ 1.0A,
10mA ≤ IOUT ≤ 1.5A,
VOUT + 1V ≤ VIN ≤ 8V
IOUT = 10mA, VOUT + 1V ≤ VIN ≤ 14V
VIN = VOUT + 1V,
10mA ≤ IOUT ≤ 1.5A
IOUT = 1.5A, ∆VOUT = -1%
Ground Current
Minimum Load Current
Current Limit
EN Input Voltage (FAN1951 only)
EN Input Current (FAN1951 only)
FLAG Threshold Voltage
(FAN1951 only)
FLAG Output Leakage Current⁴
(FAN1951 only)
FLAG Output-Low Voltage
(FAN1951 only)
IOUT = 750mA
IOUT = 1.5A
VOUT + 1V ≤ VIN ≤ 8V
VOUT = 0V, VIN = VOUT + 1V
VIH (On)
VIL (Off)
IIH, VEN = 2.25V
IIL, VEN = 0.8V
Low threshold, % VOUT
High threshold, % VOUT
Hysteresis
VFLAG = 14V
IOL = 250µA
Min.
• -2
• -2.5
•
•
•
•
• 2.25
•
•
•
•
•
Typ.
.06
0.2
350
10
20
5
2.5
93
1
Max.
2
2.5
Units
%
0.5 %
1
%
mV
500
20 mA
mA
10 mA
A
V
0.8
V
30 µA
4
µA
%
99.2 %
%
2
µA
400 mV
REV. 0.1.6 8/30/04
3