LT1036CT#PBF Linear Technology, LT1036CT#PBF Datasheet - Page 7

• Manufacturer Part Number: LT1036CT#PBF
• Description: IC REG LOGIC CNTRL 12V/5V TO220
• Manufacturer: Linear Technology

Specifications of LT1036CT#PBF

• Regulator Topology: Positive Fixed
• Voltage - Output: 12V, 5V
• Voltage - Input: Up to 30V
• Number Of Regulators: 2
• Current - Output: 3A, 75mA
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Bent and Staggered Leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Dropout (typical): -
• Current - Limit (min): -

APPLICATIO S I FOR ATIO
Output Current
The main output current limits at about 4A for input
voltages below 20V. Internal foldback, or “power limit-
ing”, circuitry detects the input-output voltage differential
and reduces current limit for input to output voltages
exceeding 8V. With 25V input, for instance, short circuit
current is reduced to ≈ 0.9A.
TYPICAL APPLICATIO S
*CAN BE ANY GATE TYPE
*
V
Fast Turn-Off, Delayed Turn-On
IN
V
IN
C1
U
+
Delayed Power-Up
IN
EN
C1
LT1036
U
GND
IN
EN
27k
R1
t
ON
LT1036
V
GND
100k
OUT
AUX
IN
= 0.3 R1C1
R1
t
DELAY
U
LT1036M/1036C • TA03
W
OUT
AUX
≈ 0.4 R1C1
C1
12V
5V
IN
EN
LT1036M/1036C • TA01
t
1
Power Supply Turn-On Sequencing
LT1036
= 0.4 R1C1
GND
R1
U
12V
OUT
AUX
An 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.
R2
C2
Thermal Cutoff at High Ambient Temperature
IN
EN
V
IN
t
2
V
= 0.15 R2C2
IN
*YELLOW SPRINGS #44008. 30kΩ at 25°C
LT1036
GND
Latch-Off with Output Short
IN
EN
OUT
AUX
LT1036M/1036C • TA05
IN
EN
LT1036
GND
t
t
OFF
ON
LT1036
GND
= 46°C
= 58°C
OUT
AUX
OUT
AUX
26.1k
0.33µF
LT1036M/1036C • TA04
LT1036M/1036C • TA02
R
68k
t
*
154k
5V
5V
12V
LT1036
1036fb
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