SEMICONDUCTOR
TECHNICAL DATA
SERIES OF ADJUSTABLE MICROPOWER
VOLTAGE REGULATOR
The KIA2951P/F are micropower voltage regulators with very low
quiescent current (75 A Typ.) and very low dropout voltage (Typ. 40mV
at light loads and 380mV at 100mA). They are ideally suited for use in
battery-powered systems. Furthermore, the quiescent current of the
KIA2951P/F increases only slightly in dropout, prolonging battery life.
One such feature is an error flag output which warns of a low output
voltage, often due to falling batteries on the input. It may be used for a
power-on reset. A second feature is the logic-compatible shutdown input
which enables the regulator to be switched on and off. Also the part may
be pin-strapped for a 5V, 3V, or 3.3V output (depending on the version), or
programmed from 1.24V to 10V with an external pair of resistors.
Careful design of the KIA2951P/F has minimized all contributions to the
error budget. This includes a tight initial tolerance(0.5% typ.), extremely
good load and line regulation (0.05% typ.) and a very low output voltage
temperature coefficient, marking the part useful as a low-power voltage
reference.
D
KIA2951P/F
BIPOLAR LINEAR INTEGRATED CIRCUIT
W
G
L
H
d
P
T
Q
A
8
5
1
4
DIM MILLIMETERS
_
A
9.6 + 0.2
_
B
6.45 + 0.2
_
D
1.52 + 0.1
_ 0.1
d
0.46 +
G
0.50 MIN
_
H
3.8 + 0.3
_
L
3.3 + 0.3
P
2.54
T
0.25+0.1/-0.05
W
7.62
0 - 15
Q
FEATURES
5V, 3V and 3.3V versios available.
High accuracy output voltage.
Guaranteed 100mA output current.
Extremely tight load and line regulation.
Very low temperature coefficient.
Use as Regulator or Reference.
Needs minimum capacitance for stability.
Current and Thermal Limiting.
Stable with low-ESR output dropout.
Error flag warns of output dropout.
B1
8
A
5
D
P
B
DIP-8
H
T
L
G
Output programmable from 1.24 to 10V.
1
4
MAXIMUM RATINGS (Ta=25
CHARACTERISTIC
Input Supply Voltage
Shutdown Input Voltage
Error Comparator Output Voltage
FeedBack Input Voltage
Power Dissipation
Junction Temperature
Operating Junction Temperature
Storage Junction Temperature
P
F
)
SYMBOL
V
IN
V
SD
V
EC
V
FB
P
D
T
j
T
opr
T
stg
RATING
-0.3
-1.5
-1.5
-1.5
500
240
150
-55 150
-65 150
30
30
30
30
UNIT
V
V
V
V
W
2003. 5. 14
Revision No : 1
B2
Logic-controlled electronic shutdown.
DIM
A
B1
B2
D
G
H
L
P
T
MILLIMETERS
_
4.85 + 0.2
_
3.94 + 0.2
_
6.02 + 0.3
_ 0.1
0.4 +
0.15+0.1/-0.05
_
1.63 + 0.2
_
0.65 + 0.2
1.27
0.20+0.1/-0.05
FLP-8
1/10
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