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LT3045 Datasheet(PDF) 26 Page - Linear Technology

Part # LT3045
Description  20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3045 Datasheet(HTML) 26 Page - Linear Technology

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LT3045
26
3045fa
For more information www.linear.com/LT3045
Typical applicaTions
Paralleling Multiple Devices Using ILIM (Current Monitor) to Cancel Ballast Resistor Drop
Ultralow 1/f Noise Reference Buffer
10µF
4.7µF
4.7µF
OUT
IN
SET
LT3045
VOUT = 5V
IOUT(MAX)
500mA
100µA
OUTS
PGFB
ILIM
GND
PG
EN/UV
LTC6655-5
3045 TA07
1,2
3,4,5
6,7
10µF
49.9k
1k
VIN
6V ±5%
10µF
N = NUMBER OF DEVICES IN PARALLEL
RCDC = CABLE (BALLAST RESISTOR) DROP CANCELLATION RESISTOR
RILIM = CURRENT LIMIT PROGRAMMING RESISTOR
RBALLAST = BALLAST RESISTOR
ILIM = OUTPUT CURRENT LIMIT
10µF
20m
1µF
10µF
OUT
IN
SET
LT3045
100µA
100µA
OUTS
PGFB
ILIM
GND
PG
EN/UV
IN
PGFB
PG
EN/UV
16.5k
RILIM
287
RCDC
5
RILIM = 150mA • kΩ/ILIM – RCDC • N
= 287 (FOR 500mA ILIM PER REGULATOR)
RCDC = RBALLAST • 500/N
= 5
VOUT = 3.3V
IOUT(MAX) = 1A
287
20m
3045 TA08
OUT
LT3045
OUTS
SET
ILIM
GND
VIN
5V ±5%



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