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Электронный компонент: IL33269-12

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IL33269
1
L
OW
D
ROPOUT
P
OSITIVE
F
IXED AND
A
DJUSTABLE
V
OLTAGE
R
EGULATORS

The IL33269 series are low dropout, medium current, fixed and
adjustable, positive voltage regulators specifically designed for
use in low input voltage applications. These devices offer the
circuit designer an economical solution for precision voltage
regulation, while keeping power losses to a minimum.
The regulator consists of a 1.0V dropout composite PNP-NPN
pass transistor, current limiting, and thermal shutdown.

F
EATURES
3.3 V, 5.0 V, 12V and Adjustable Versions
1.0 V Dropout
Output Current in Excess of 800 mA
Thermal Protection
Short Circuit Protection
Output Trimmed to 1.0% Tolerance
No Minimum Load Requirement for Fixed Voltage Output Devices
Device type/nominal output
voltage
IL33269-3.3
IL33269-5
IL33269-12
3.3 V
5 V
12 V


MAXIMUM RATINGS
Rating Symbol
Value
Unit
Power Supply input Voltage
Vin
20
V
Power Dissipation and Thermal Characteristics
T
A
= +25
C
Thermal Resistance, Junction to Air
Thermal Resistance, Junction to Case
P
D
JA
JC

W
o
C/W
o
C/W
Operating Junction Temperature Range
T
J
-40 to +150
C
Storage Temperature
Tstg
-55 to +150
C
Pin 1. Gnd/ Adj
2. Vin
3. Vout
(H eatsink
surface connected
to Pin 2.)
TO-220 AB
IL33269
2
ELECTRICAL CHARACTERISTICS (C
O
=
10 nF,TA=25C, for min/max values T
J
=-40
o
C
to+125
o
C,
unless otherwise noted.)
Characteristic Symbol
Min
Typ
Max
Unit
Output Voltage (Iout - 10 mA, T
J
= 25C)
3.3 Suffix (Vcc=5.3V)
5.0 Suffix (Vcc=7V)
12 Suffix (Vcc=14V)
VQ
3.27
4.95
11.86

3.3
5.0
12

3.33
5.05
12.12
V
Output Voltage (Line, Load and Temperature)
(1.25 V
Vjn - Vout 15 V, Iout
= 500 mA)
(1.35 V
Vin -Vout 10 V, Iout = 800 mA)
3.3 Suffix
5.0 Suffix
12 Suffix
Vo


3.23
4.9
11.76



3.3
5.0
12



3.37
5.1
12.24
V
Reference Voltage (Iout = 10 mA, Vjn-Vout = 2.0
V, T
J
= 25C) Adjustable
Vrei 1.235 1.25 1.265 V
Reference Voltage (Line, Load and Temperature)
(Note 1)
(1.25 V
Vin- Vout 15 V, Iout - 500 mA)
(1.35 V
Vin -Vout10 V, Iout - 600 mA)
Adjustable
Vrel 1.225 1.25 1.275 V
Line Regulation
(Iout = 10 mA, Vin = [Vout+1.5 V] to Vin=20 V, T
J
=
25
o
C)
Reg
line
-
-
0.3
%
Load Regulation (Vin=Vout+3.0V, Iout=10mA to
800 mA, T
J
= 25
o
C)
Beg
load
-
-
0.5
%
Dropout Voltage
(Iout = 500 mA)
(Iout = 800 mA)
Vin-Vout -

1.0
1.1

1.25
1.35

V
Ripple Rejection
(10 Vpp, 120 Hz Sinewave; Iout = 500 mA)
RR 55 - - dB
Current Limit (Vin - Vout = 10 V)
I
Limit
600 -
-
mA
Quiescent Current (Fixed Output)
I
Q
- 5.5
8.0
mA
Minimum Required Load Current Fixed Output
Adjustable
I
Load
8.0 -
0
mA
Adjustment Pin Current
I
Adj
- - 120 nA