UNISONIC TECHNOLOGIES CO., LTD
UR233
LOW DROP FIXED AND
ADJUSTABLE POSITIVE
VOLTAGE REGULATORS
DESCRIPTION
The UTC
UR233
is a LOW DROP Voltage Regulator able to
provide up to 0.8A of Output Current, available even in adjustable
version (V
REF
=1.25V).High efficiency is assured by NPN pass
transistor. In fact in the case, unlike than PNP one, the Quiescent
Current flows mostly into the load. Only a very common 10μF
minimum capacitor is needed for stability. On chip trimming
allows the regulator to reach a very tight output voltage tolerance,
within
±1%
at 25°С. The ADJUSTABLE
UR233
is pin to pin
compatible with the other standard Adjustable voltage regulators
maintaining the better performances in terms of Drop and
Tolerance.
LINEAR INTEGRATED CIRCUIT
*Pb-free plating product number: UR233L
FEATURES
*Low dropout voltage (1.5V Typ.)
*Output current up to 0.8A
*Fixed output voltage of: 1.7V,1.8V,2.5V, 2,85V, 3.0V, 3.3V, 5.0V
*Adjustable version availability (V
REF
=1.25V)
*Internal current and thermal limit
*Available in
±1%(at
25°С) and 2% in all temperature range
*Supply voltage rejection: 75dB (TYP)
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
UR233-xx-AA3-①-②
UR233L-xx-AA3-①-②
UR233-xx-AB3-①-②
UR233L-xx-AB3-①-②
UR233-xx-TA3-①-②
UR233L-xx-TA3-①-②
UR233-xx-TN3-①-②
UR233L-xx-TN3-①-②
UR233-xx-TQ2-①-②
UR233L-xx-TQ2-①-②
UR233-xx-TQ3-①-②
UR233L-xx-TQ3-①-②
UR233-xx-S08-①-②
UR233L-xx-S08-①-②
Note: Pin Assignment: I:V
IN
O:V
OUT
G:GND
Package
SOT-223
SOT-89
TO-220
TO-252
TO-263
TO-263-3
SOP-8
①
Pin Assignment
A: GOI
B: OGI
C: GIO
D: IGO
GOOIxOOx
②
Packing
R: Tape Reel
T: Tube
ORDERING INFORMATION(Cont.)
www.unisonic.com.tw
Copyright © 2008 Unisonic Technologies Co., Ltd
1 of 10
QW-R102-011.D
UR233
ABSOLUTE MAXIMUM RATINGS
PARAMETER
LINEAR INTEGRATED CIRCUIT
VALUE
UNIT
DC Input Voltage
12
V
SOT-223
0.740
SOT-89
0.571
SOP-8
0.625
Power Dissipation
P
D
W
TO-252
1.471
TO-220
1.820
TO-263
2.222
Operating Junction Temperature
T
OPR
-40 ~ +85
°С
Storage Temperature
T
STG
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
SYMBOL
V
IN
THERMAL DATA
PARAMETER
SOT-223
SOT-89
SOP-8
TO-252
TO-220
TO-263
SOT-223
SOT-89
SOP-8
TO-252
TO-220
TO-263
SYMBOL
RATING
135
175
160
68
55
45
19
48
45
7.5
15
7.8
UNIT
Junction-to-Ambient
θ
JA
°C/W
Junction-to-Case
θ
JC
°C/W
ELECTRICAL CHARACTERISTICS
(T
J
=0 ~ 125°С, unless otherwise specified)
For UR233-1.7
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
Thermal Regulation
SYMBOL
V
OUT
V
OUT
ΔV
OUT
ΔV
OUT
ΔV
OUT
ΔV
OUT
V
IN
I
Q
I
OUT
eN
SVR
V
D
T
A
=25°С, 30ms Pulse
0.01
TEST CONDITIONS
V
IN
=3.7V, I
OUT
=10mA,
±1%
T
J
=25°С
V
IN
=3.1 ~ 10V,
±2%
I
OUT
=2 ~ 800mA
V
IN
=3.1 ~ 10V, I
OUT
=2mA
V
IN
=3.1V, I
OUT
=2 ~ 800mA
1000 hrs, T
J
=125°С
I
OUT
=100mA
V
IN
=10V
V
IN
=6.7V, T
J
=25°С
B=10Hz ~ 10KHz, T
J
=25°С
I
OUT
=40mA, f=120Hz, T
J
=25°С,
V
IN
=4.7V, V
RIPPLE
=1Vpp
MIN.
1.683
1.666
1
1
0.5
0.3
5
950
100
75
1.50
0.10
TYP.
1.700
MAX.
1.717
1.734
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
μV
dB
V
%/W
800
60
12
10
1200
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 10
QW-R102-011.D
嵌入式系统
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