L4949, NCV4949
http://onsemi.com
2
ABSOLUTE MAXIMUM RATINGS
Rating Symbol Value Unit
DC Operating Supply Voltage V
CC
28 V
Transient Supply Voltage (t < 1.0 s) V
CC
TR
40 V
Output Current I
out
Internally
Limited
−
Output Voltage V
out
20 V
Sense Input Current I
SI
±1.0 mA
Sense Input Voltage V
SI
V
CC
−
Output Voltages V
Reset Output V
Reset
20
Sense Output V
SO
20
Output Currents mA
Reset Output I
Reset
5.0
Sense Output I
SO
5.0
Preregulator Output Voltage V
Z
7.0 V
Preregulator Output Current I
Z
5.0 mA
ESD Protection at any pin V
Human Body Model − 2000
Machine Model − 400
Thermal Resistance, Junction−to−Air
R
q
JA
°C/W
P Suffix, DIP−8 Plastic Package, Case 626 100
D Suffix, SOIC−8 Plastic Package, Case 751 200
PD Suffix, SOIC−8 EP Plastic Package, Case 751AC (Note 1) 85
D Suffix, SOIC−20 Plastic Package, Case 751D 80
Operating Junction Temperature Range T
J
−40 to +150 °C
Storage Temperature Range T
stg
−65 to +150 °C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Soldered to a 200 mm
2
1 oz. copper−clad FR−4 board.
ELECTRICAL CHARACTERISTICS (V
CC
= 14 V, −40°C < T
A
< 125°C, unless otherwise specified.)
Characteristic
Symbol Min Typ Max Unit
Output Voltage (T
A
= 25°C, I
out
= 1.0 mA) V
out
4.95 5.0 5.05 V
Output Voltage (6.0 V < V
CC
< 28 V, 1.0 mA < I
out
< 50 mA) V
out
4.9 5.0 5.1 V
Output Voltage (V
CC
= 35 V, t < 1.0 s, 1.0 mA < I
out
< 50 mA) V
out
4.9 5.0 5.1 V
Dropout Voltage V
drop
V
I
out
= 10 mA − 0.1 0.25
I
out
= 50 mA − 0.2 0.40
I
out
= 100 mA − 0.3 0.50
Input to Output Voltage Difference in Undervoltage Condition V
IO
− 0.2 0.4 V
(V
CC
= 4.0 V, I
out
= 35 mA)
Line Regulation (6.0 V < V
CC
< 28 V, I
out
= 1.0 mA) Reg
line
− 1.0 20 mV
Load Regulation (1.0 mA < I
out
< 100 mA) Reg
load
− 8.0 30 mV
Current Limit I
Lim
mA
V
out
= 4.5 V 105 200 400
V
out
= 0 V − 100 −
Quiescent Current (I
out
= 0.3 mA, T
A
< 100°C) I
QSE
− 150 260
mA
Quiescent Current (I
out
= 100 mA) I
Q
− − 5.0 mA