kd1083 STMicroelectronics, kd1083 Datasheet

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kd1083

Manufacturer Part Number
kd1083
Description
7.5a Low Drop Positive Voltage Regulator Adjustable And Fixed
Manufacturer
STMicroelectronics
Datasheet
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
guaranteed not to exceed 1.4V at maximum
output
lighter loads. The KD1083 also features an
on-chip output current limit function and a thermal
shutdown protection with hysteresis, preventing
from excessive
SCHEMATIC DIAGRAM
October 2002
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
THREE TERMINAL ADJUSTABLE OR FIXED
OUTPUT VOLTAGE 1.5V,1.8V, 2.5V, 3.0, 3.3V
OUTPUT CURRENT UP TO 7.5A
1.4V MAX DROPOUT VOLTAGE AT FULL
LOAD
LINE REGULATION: MAX 0.2% OVER FULL
TEMPERATURE RANGE
LOAD REGULATION: MAX 0.5% OVER FULL
TEMPERATURE RANGE
OUTPUT CURRENT LIMIT
THERMAL SHUTDOWN PROTECTION
WITH HYSTERESIS
WIDE OPERATING TEMPERATURE RANGE
-40°C TO 125° C
PINOUT COMPATIBILITY WITH STANDARD
ADJUSTABLE VREG
current
up
7.5A LOW DROP POSITIVE VOLTAGE REGULATOR
to
power dissipation in case of
7.5A.
while
Dropout
it
decreases
voltage
at
is
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.
ADJUSTABLE AND FIXED
TO-220
PRELIMINARY DATA
KD1083
D
2
PAK
1/11

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kd1083 Summary of contents

Page 1

... THERMAL SHUTDOWN PROTECTION WITH HYSTERESIS WIDE OPERATING TEMPERATURE RANGE -40°C TO 125° C 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. ...

Page 2

... KD1083V33 KD1083V (*) Available in Tape & Reel with the suffix "R" for fixed version and "-R" for adjustable version. TYPICAL APPLICATION CIRCUITS 2/11 Parameter TO-220 PAK(*) KD1083D2T15 KD1083D2T18 KD1083D2T25 KD1083D2T30 KD1083D2T33 KD1083D2T REF R Value Unit from -0 ...

Page 3

... ELECTRICAL CHARACTERISTICS OF KD1083 (V otherwise specified.) Symbol Parameter V Reference Voltage REF V Line Regulation REF V Load Regulation REF V Dropout Voltage d I Short Circuit Current sc I Minimum Load Current O(min) I Adjust Pin Current ADJ I Adjust Pin Current Change ADJ SVR Supply Voltage Rejection eN RMS Output Noise Voltage ...

Page 4

... RMS Output Noise Voltage (% Thermal Shutdown SHDN Threshold T Thermal Shutdown HYST Hysteresis NOTE 1: See short-circuit current curve for available output current at fixed dropout. ELECTRICAL CHARACTERISTICS OF KD1083#25 (V unless otherwise specified.) Symbol Parameter V Output Voltage O V Line Regulation O V Load Regulation O ...

Page 5

... ELECTRICAL CHARACTERISTICS OF KD1083#30 (V unless otherwise specified.) Symbol Parameter V Output Voltage O V Line Regulation O V Load Regulation O V Dropout Voltage d I Short Circuit Current sc I Quiescent Current d SVR Supply Voltage Rejection eN RMS Output Noise Voltage (% Thermal Shutdown SHDN Threshold T Thermal Shutdown ...

Page 6

... KD1083 TYPICAL CHARACTERISTICS (C Figure 1 : Reference Voltage vs Temperature Figure 2 : Reference Voltage vs Temperature Figure 3 : Reference Voltage vs Temperature 6/11 =C =10µF(tantalum), unless otherwise specified Figure 4 : Line Regulation vs Temperature Figure 5 : Load Regulation vs Temperature Figure 6 : Dropout Voltage vs Temperature ...

Page 7

... Figure 7 : Dropout Voltage vs Temperature Figure 8 : Adjust Pin Current vs Temperature Figure 9 : Quiescent Current vs Temperature Figure 10 : Minimum Load Current vs Temperature Figure 11 : Dropout Voltage vs Output Current Figure 12 : Supply Voltage Rejection vs Output Current KD1083 7/11 ...

Page 8

... KD1083 Figure 13 : Short Circuit Current vs Dropout Voltage Figure 14 : Supply Voltage Rejection vs Temperature Figure 15 : Line Transient =10V O V =from 12 to 13V, I =100mA F(tantalum talum) 8/11 Figure 16 : Line Transient =10V O V =from 13 to 12V, I =100mA talum) ...

Page 9

... MIN. TYP A 2.2 A1 0.9 A2 0.03 B 0.64 B2 5.2 C 0. 6.4 G 4.4 H 9.35 L2 0.8 L4 0.6 inch MAX. MIN. TYP. 2.4 0.086 1.1 0.035 0.23 0.001 0.9 0.025 5.4 0.204 0.6 0.017 0.6 0.019 6.2 0.236 6.6 0.252 4.6 0.173 10.1 0.368 0.031 1 0.023 KD1083 MAX. 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 0.260 0.181 0.397 0.039 0068772-B 9/11 ...

Page 10

... KD1083 TO-220 MECHANICAL DATA DIM. MIN. A 4.40 C 1. 0.49 F 0.61 F1 1.14 F2 1.14 G 4.95 G1 2 13.0 L5 2.65 L6 15.25 L7 6.2 L9 3.5 DIA. 3.75 10/11 mm. TYP MAX. MIN. 4.60 0.173 1.32 0.048 2.72 0.094 1.27 0.70 0.019 0.88 0.024 1.70 0.044 1.70 0.044 5.15 0.194 2.7 0.094 10.40 0.393 16.4 14.0 0.511 2.95 0.104 15.75 0.600 6.6 0.244 3.93 0.137 3.85 0.147 inch TYP. MAX. 0.181 0.051 0.107 0.050 ...

Page 11

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