PJ2800 Series
300mA CMOS LDO REGULATORS
1-5
2003/04
.rev.B
Preliminary
he PJ2800/A series are highly precise, low power
consumption, positive voltage regulators manufactured
using CMOS and laser trimming technologies. The series
provides large currents with a significantly small dropout
voltage. The PJ2800/A consists of a current limiter circuit, a
driver transistor, a precision reference voltage and an error
amplifier. Output voltage is selectable in 0.1V steps between
1.5V to 5.0V, TO-92, SOT-89 and SOT-23 packages are
available.
Input Voltage range is up to 12V
Dropout Voltage :450mV at 300mA output current
Guaranteed 300mA output current
Internal R
on
=1.5 PMOS draw no base current
Highly Accurate : 2%, 1.5V to 5V with 0.1V step
Low quiescent current : 100A
Fast transient response
Good load regulation
Current limit and thermal shutdown protection
Ultra Small Packages : TO-92, SOT-89, SOT-23
Applications
Wireless Communication
Cameras, video recorders
Portable games
Portable AV equipment
Battery powered equipment
CD-ROM, DVD, and LAN Card
Device Operation
Temperature
Package
PJ28xxCT TO-92
PJ28xxCY SOT-89
PJ28xxCX SOT-23
PJ28xxACT TO-92
PJ28xxACY SOT-89
PJ28xxACX
-20 ~ +85
o
C
SOT-23
Note:
1. xx is the index of output voltage, ex. 33=3.3V
2. Available output voltage 1.5/1.8/2.5/2.8/3.0/3.2/3.3/5.0
3. Contact factory fro additional voltage options.
T
FEATURES
SOT-89
SOT-23
ORDER INFORMATION
PJ2800A
Pin 1. Gnd
2. In
3. Out
PJ2800
Pin 1. Out
2. Gnd
3. Int
(Heatsink surface connected to Pin 2)
PJ2800
Pin 1. In
2. Out
3. Gnd
PJ2800A
Pin 1. Gnd
2. Out
3. In
PJ2800
Pin 1. In
2. Gnd
3. Out
PJ2800A
Pin 1. Gnd
2. In
3. Out
TO-92
PJ2800 Series
300mA CMOS LDO REGULATORS
2-5
2003/04
.rev.B
Preliminary
Parameter
Symbol Value
Unit
Input Voltage
V
cc
12 V
Package thermal resistance TO-92
SOT-89
SOT-23
JA
100
100
250
/W
Power Dissipation TO-92
P
D
@ T
A
= 25 SOT-89
SOT-23
P
D
625
500
150
mW
Operating Junction Temperature range
Top
-40 ~ +125
Storage Temperature range
Tst
-65 ~ +150
Parameter Symbol Conditions Min
Typ
Max
Unit
Input Voltage
V
IN
--
--
10
V
Output Voltage accuracy
V
OUT
V
IN
=5V, I
OUT
=1mA -2
--
+2
%
Current Limit (Note 2)
I
LIMIT
V
IN
=5V, V
OUT
=0V 350
450
--
mA
Load Regulation (Note 3)
V
LOAD
I
OUT
=1~300mA, V
IN
=5V -- 1 30 mV
Dropout Voltage (Note 1)
V
DROP
I
OUT
=300mA --
450
600
mV
Standby Current
V
STANDBY
I
OUT
=0mA, V
IN
=12V --
100
110
A
Line Regulation
V
LINE
I
OUT
=1mA, V
IN
=4.5~12V -- 2 3 %/V
Output Voltage (Note 4)
Temperature Coefficient
V
OUT
--
50
150
PPM/
o
C
Note 1.
Dropout voltage is defined as the input to output differential voltage. Dropout is measured at constant junction temperature by using
pulsed ON time, and the criterion is V
OUT
Inside target value 2%. This test is skipped at the condition of V
IN
<3V.
2.
Current limit is measured at constant junction temperature by using pulsed testing with a low ON time.
3.
Regulation is measured at constant junction temperature by using pulsed testing with a low ON time
4.
Guaranteed by design.
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(Ta = +25C unless otherwise noted)
PJ2800 Series
300mA CMOS LDO REGULATORS
3-5
2003/04
.rev.B
Preliminary
Measuring Circuit 1: Supply Current
Measuring Circuit 2: Output Voltage, Oscillation Check, Line Regulation, Dropout Voltage, Load Regulation
MEASURING CIRCUITS
TYPICAL APPLICATION CIRCUIT
PJ2800 Series
300mA CMOS LDO REGULATORS
4-5
2003/04
.rev.B
Preliminary
TO-92 DIMENSION
MILLIMETERS INCHES
DIM
MIN MAX MIN MAX
A 4.300 4.700 0.169 0.185
B 4.300 4.700 0.169 0.185
C 14.300 14.350 0.563 0.565
D 0.220 0.490 0.008 0.019
E 3.300 3.700 0.129 0.146
F 2.420 2.660 0.095 0.105
G 0.375 0.425 0.014 0.017
SOT-89 DIMENSION
MILLIMETERS INCHES
DIM
MIN MAX MIN MAX
A 4.400 4.600 0.173 0.181
B 1.500 1.700 0.059 0.070
C 2.300 2.600 0.090 0.102
D 0.400 0.520 0.016 0.020
E 1.500 1.500 0.059 0.059
F 3.000 3.000 0.118 0.118
G 0.890 1.200 0.035 0.047
H 4.050 4.250 0.159 0.167
I 1.400 1.600 0.055 0.063
J 0.350 0.440 0.014 0.017
TO-92 Unitmm
A
C
D
B
E
F
G
SOT-89 Unitmm
PJ2800 Series
300mA CMOS LDO REGULATORS
5-5
2003/04
.rev.B
Preliminary
SOT-23 DIMENSION
MILLIMETERS INCHES
DIM
MIN MAX MIN MAX
A 2.780 3.030 0.109 0.119
B 0.350 0.450 0.013 0.018
C 1.780 2.030 0.070 0.080
D 0.510 0.610 0.020 0.024
E 1.550 1.650 0.061 0.065
F 0.960 1.240 0.037 0.049
G 0.076 0.127 0.003 0.005
SOT-23 Unitmm
D
C
A
E
B
G
F
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