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PDF KD1083 Data sheet ( Hoja de datos )
| Número de pieza | KD1083 | |
| Descripción | 7.5A LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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KD1083
7.5A LOW DROP POSITIVE VOLTAGE REGULATOR
ADJUSTABLE AND FIXED
s THREE TERMINAL ADJUSTABLE OR FIXED
OUTPUT VOLTAGE 1.5V,1.8V, 2.5V, 3.0, 3.3V
s OUTPUT CURRENT UP TO 7.5A
s 1.4V MAX DROPOUT VOLTAGE AT FULL
LOAD
s LINE REGULATION: MAX 0.2% OVER FULL
TEMPERATURE RANGE
s LOAD REGULATION: MAX 0.5% OVER FULL
TEMPERATURE RANGE
s OUTPUT CURRENT LIMIT
s THERMAL SHUTDOWN PROTECTION
WITH HYSTERESIS
s WIDE OPERATING TEMPERATURE RANGE
-40°C TO 125°C
s PINOUT COMPATIBILITY WITH STANDARD
ADJUSTABLE VREG
DESCRIPTION
The KD1083 is a low drop linear voltage regulator,
proposed both in adjustable and fixed version and
designed for use in applications requiring output
currents up to 7.5A. Dropout voltage is
guaranteed not to exceed 1.4V at maximum
output current while it decreases at
lighter loads. The KD1083 also features an
on-chip output current limit function and a thermal
shutdown protection with hysteresis, preventing
from excessive power dissipation in case of
SCHEMATIC DIAGRAM
PRELIMINARY DATA
TO-220
D2PAK
insufficient heatsinking. The KD1083 is fully pin to
pin compatible with the older 3-terminal adjustable
regulators, but it has better performances in terms
of drop and output voltage precision.
On chip trimming allows the regulator to reach a
very tight output voltage tolerance, within ±2% at
25°C and 2% over the full temperature range.
Unlike voltage regulators using a PNP transistor
as series pass element in which a considerable
fraction of the output current is wasted as
quiescent current, the LD1083 quiescent current
flows almost entirely into the load, improving the
efficiency.
Only a 10µF minimum capacitor is required for
output stability.
October 2002
1/11
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
1 page  
KD1083
ELECTRICAL CHARACTERISTICS OF KD1083#30 (VIN=4.75V, CI = CO =10µF, Tj = -40 to 125°C,
unless otherwise specified.)
Symbol
Parameter
Test Conditions
VO
∆VO
∆VO
Vd
Isc
Id
SVR
eN
TSHDN
THYST
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Short Circuit Current
Quiescent Current
Supply Voltage Rejection
RMS Output Noise Voltage
(% of VO)
Thermal Shutdown
Threshold
Thermal Shutdown
Hysteresis
IO=10mA , (VIN-VO)=3V, Tj = 25°C
IO = 0 to 7.5A, (VIN-VO) = 1.5 to 4V
(note 1)
IO=10mA, (VIN-VO) = 1.5 to 4V
(VIN-VO)=3V, IO = 0 to 7.5A
∆VO=2%, IO=7.5A
(VIN-VO) = 1.5 to 4V
(VIN-VO) = 1.5 to 4V, IO=0A
f = 120 Hz, CO = 25 µF, IO = 7.5A,
(VIN-VO) = 3V, VPP=1V
TA = 25°C, f =10Hz to 10kHz, IO=10mA,
(VIN-VO)=3V
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
Min.
2.97
2.94
Typ.
3.0
3
Max.
3.03
3.06
Unit
V
V
52.5
0.015
0.3
1.05
8.5
5
67.3
0.2
0.5
1.4
10
%
%
V
A
mA
dB
0.003
%
175 °C
5 °C
ELECTRICAL CHARACTERISTICS OF KD1083#33 (VIN=5.0V, CI = CO =10µF, Tj = -40 to 125°C, unless
otherwise specified.)
Symbol
Parameter
Test Conditions
VO
∆VO
∆VO
Vd
Isc
Id
SVR
eN
TSHDN
THYST
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Short Circuit Current
Quiescent Current
Supply Voltage Rejection
RMS Output Noise Voltage
(% of VO)
Thermal Shutdown
Threshold
Thermal Shutdown
Hysteresis
IO=10mA , (VIN-VO)=3V, Tj = 25°C
IO = 0 to 7.5A, (VIN-VO) = 1.5 to 3.7V
(note 1)
IO=10mA, (VIN-VO) = 1.5 to 3.7V
(VIN-VO)=3V, IO = 0 to 7.5A
∆VO=2%, IO=7.5A
(VIN-VO) = 1.5 to 3.7V
(VIN-VO) = 1.5 to 3.7V, IO=0A
f = 120 Hz, CO = 25 µF, IO = 7.5A,
(VIN-VO) = 3V, VPP=1V
TA = 25°C, f =10Hz to 10kHz, IO=10mA,
(VIN-VO)=3V
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
Min.
3.267
3.234
Typ.
3.3
3.3
Max.
3.333
3.366
Unit
V
V
51.7
0.015
0.3
1.05
8.5
5
66.5
0.2
0.5
1.4
10
%
%
V
A
mA
dB
0.003
%
175 °C
5 °C
5/11
5 Page 
KD1083
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
© The ST logo is a registered trademark of STMicroelectronics
© 2002 STMicroelectronics - Printed in Italy - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco
Singapore - Spain - Sweden - Switzerland - United Kingdom - United States.
© http://www.st.com
11/11
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet KD1083.PDF ] | |
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