LT1036 LINER [Linear Technology], LT1036 Datasheet

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LT1036

Manufacturer Part Number
LT1036
Description
Logic Controlled Regulator
Manufacturer
LINER [Linear Technology]
Datasheet

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FEATURES
TYPICAL APPLICATIO
APPLICATIO S
LOGIC
Two Regulated Outputs:
2% Output Voltage Tolerance
60dB Ripple Rejection
0.7% Load Regulation
TTL and CMOS Compatible Logic Control
100% Thermal Burn-In on All Devices
Power Supply Sequencing
Remote On/Off Power Control
Selective System Power During Emergency
Power Operation
Memory Power Supply with Back-Up
ENABLE
12V at 3A
5V at 75mA
V
IN
5
2
U
Functional Diagram
IN
EN
LT1036
GND
3
OUT
AUX
U
1
4
12V
5V
LT1036M/1036C • FD01
OV
DESCRIPTIO
The LT
package. The 12V main regulator offers excellent
performance while supplying load currents up to 3A, and
the 5V auxiliary regulator provides similar performance
while supplying lighter loads of 75mA. The main regulator
has the additional feature of being under the shutdown
control of a logic signal. When the enable pin is taken to a
low logic level, the main regulator shuts down and its
output voltage goes to near 0V. During this command, the
auxiliary output is unaffected by the main regulator’s
condition and continues to provide a 5V output.
The main output has current and power limiting combined
with thermal shutdown to make it virtually blowout proof.
The auxiliary output is not affected by the thermal
shut down mechanism or the state of the main output,
allowing it to be used as a back-up in case of overloads or
shorts on the main supply.
The logic input of the LT1036 (enable pin) has a 1.6V
threshold and can be driven from a high source
impedance. This allows it to be driven by most logic
families, including TTL and CMOS.
For a dual 5V version of the LT1036, please see the LT1035
data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Logic Controlled Regulator
®
1036 features two positive regulators in the same
4.5
3.5
2.5
1.5
0.5
5
4
3
2
1
0
14
16
Guaranteed Load Current,
U
18
INPUT VOLTAGE (V)
12V Output
20
22
24
26
28
30
LT1036
LT1036M/1036C • FD02
1036fa
1

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LT1036 Summary of contents

Page 1

... The logic input of the LT1036 (enable pin) has a 1.6V threshold and can be driven from a high source impedance. This allows driven by most logic families, including TTL and CMOS. For a dual 5V version of the LT1036, please see the LT1035 data sheet. , LTC and LT are registered trademarks of Linear Technology Corporation. 12V ...

Page 2

... Current V Input Voltage to IN Maintain Regulation (Dropout Voltage (Note 1) Operating Junction Temperature LT1036M (OBSOLETE) ..................... – 150 C LT1036C ................................................ 125 C Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 ORDER PART NUMBER LT1036MK LT1036CK 5-LEAD PLASTIC TO-220 ...

Page 3

... Note 6: Input voltage is reduced until output drops by 100mV from its initial value. Note 7: See “Guaranteed Load Current” graph. Note 8: Continuous shorts on the auxiliary output are not allowed unless adequate heat sinking is used to maintain junction temperature below 150 C. Note 9: Guaranteed but not tested. LT1036 MIN TYP MAX UNITS 4 5.5 ...

Page 4

... INPUT VOLTAGE (V) LT1036M/1036C • TPC05 Enable Pin Characteristics 0 –0.2 0 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 14 ENABLE VOLTAGE (V)* *NOTE SCALE CHANGE LT1036M/1036C • TPC08 Line Transient Response, 12V Output TANTALUM 20 OUT 0 – TANTALUM OUT 0 – 18V IN 100 ...

Page 5

... The outputs are trimmed to 2% initial tolerance and exhibit excellent line and load regulation. The logic control feature makes the LT1036 ideal for many system applications where it is desirable to power-up a portion of the system for a period of time, and then power the system down during a standby operation ...

Page 6

... With no output capacitor, the rise time of the main output is about 12 s. With an output capacitor, rise time is limited by the short circuit current of the LT1036 and the ) to the regulator. IN load capacitance output capacitor slows the output rise time to approximately 80 s ...

Page 7

... LT1036M/1036C • TA03 additional feature of the LT1036 is that the auxiliary supply does not incorporate, nor is it affected by, thermal shutdown. Any fault condition of the main regulator will not affect the auxiliary output voltage. The following applications circuits will serve to indicate the versatility of the LT1036 ...

Page 8

... OUTPUT + + AUX EN GND 10 F 6000 10.5k OUTPUT CONTROL LOGIC *DALE TD-5 THIS CIRCUIT IS DESIGNED TO REDUCE POWER DISSIPATION IN THE LT1036 OVER A 90VAC–140VAC INPUT RANGE 5k 5k LT1036M/1036C • TA09 First-On, First-Off Sequencing IN OUT IN OUT 12V LT1036 LT1036 “FIRST ON” AUX EN AUX ...

Page 9

... Q16 Q15 2.1k Q19 Q14 20.4k Q18 2.9k Q17 10k 100k 500 LT1036 Q31 Q28 Q27 Q24 5k 430 Q26 30 15pF pF 3k 115 50 750 10pF Q30 Q25 20pF 4.8k 8k Q21 Q20 400 Q39 2 ENABLE D2 7V Q29 10k 0.03 MAIN OUTPUT 1 2k GND 3 LT1036M/1036C • SD01 1036fa 9 ...

Page 10

... LT1036 PACKAGE DESCRIPTIO 0.390 – 0.415 (9.906 – 10.541) 0.230 – 0.270 (5.842 – 6.858) 0.460 – 0.500 (11.684 – 12.700) 0.330 – 0.370 (8.382 – 9.398) 0.067 BSC 0.028 – 0.038 (1.70) (0.711 – 0.965 Package 5-Lead Plastic TO-220 (Standard) (Reference LTC DWG # 05-08-1421) 0.147 – ...

Page 11

... TP P.C. OBSOLETE PACKAGE LT1036 0.060 – 0.135 (1.524 – 3.429) 0.655 – 0.675 (16.64 – 19.05) 0.151 – 0.161 (3.84 – 4.09) DIA 2 PLC 0.167 – 0.177 (4.24 – 4.49) R 0.490 – 0.510 (12.45 – ...

Page 12

... LT1036 RELATED PARTS PART NUMBER DESCRIPTION LT1573 UltraFast Transient Response Low Dropout Regulator PNP Driver LT1764/A 3A, Low Noise, Fast Transient Response, LDO LT3150 Fast Transient Response Low Dropout Regulator MOSFET Driver 10A Linear Technology Corporation 12 1630 McCarthy Blvd., Milpitas, CA 95035-7417 ...

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