LT3088 Datasheet: 800mA Single Resistor Rugged Linear Regulator





LT3088 800mA Single Resistor Rugged Linear Regulator Datasheet

Part Number LT3088
Description 800mA Single Resistor Rugged Linear Regulator
Manufacture Linear Technology
Total Page 26 Pages
PDF Download Download LT3088 Datasheet PDF

Features: LT3088 800mA Single Resistor Rugged Line ar Regulator FEATURES n Extended Safe Operating Area n Maximum Output Curre nt: 800mA n Stable with or without Inp ut/Output Capacitors n Wide Input Volt age Range: 1.2V to 36V n Single Resist or Sets Output Voltage n Output Adjust able to 0V n 50µA SET Pin Current: 1% Initial Accuracy n Output Voltage Nois e: 27µVRMS n Parallel Multiple Device s for Higher Current, Heat Spreading an d Lower Noise nn Pin Compatible Upgrade to LT1117 n Reverse-Battery and Rever se-Current Protection n <1mV Typical Lo ad Regulation Independent of VOUT n <0. 001%/V Typical Line Regulation n 3-Lea d SOT-223, 3-Lead DD-Pak, 8-Lead 3mm × 3mm DFN Packages APPLICATIONS n All S urface Mount Power Supply n Rugged Ind ustrial Power Supply n Post Regulator for Switching Supplies n Low Output Vo ltage Supply n Intrinsic Safety Applic ations DESCRIPTION The LT®3088 is an 800mA low dropout linear regulator desi gned for rugged industrial applications. A key feature of the IC is.

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LT3088
800mA Single Resistor
Rugged Linear Regulator
FEATURES
n Extended Safe Operating Area
n Maximum Output Current: 800mA
n Stable with or without Input/Output Capacitors
n Wide Input Voltage Range: 1.2V to 36V
n Single Resistor Sets Output Voltage
n Output Adjustable to 0V
n 50µA SET Pin Current: 1% Initial Accuracy
n Output Voltage Noise: 27µVRMS
n Parallel Multiple Devices for Higher Current, Heat
Spreading and Lower Noise
nn Pin Compatible Upgrade to LT1117
n Reverse-Battery and Reverse-Current Protection
n <1mV Typical Load Regulation Independent of VOUT
n <0.001%/V Typical Line Regulation
n 3-Lead SOT-223, 3-Lead DD-Pak, 8-Lead 3mm ×
3mm DFN Packages
APPLICATIONS
n All Surface Mount Power Supply
n Rugged Industrial Power Supply
n Post Regulator for Switching Supplies
n Low Output Voltage Supply
n Intrinsic Safety Applications
DESCRIPTION
The LT®3088 is an 800mA low dropout linear regulator
designed for rugged industrial applications. A key feature
of the IC is the extended safe operating area (SOA). The
LT3088 can be paralleled for higher output current or heat
spreading. The device withstands reverse input and reverse
output-to-input voltages without reverse current flow.
The LT3088’s precision 50µA reference current source
allows a single resistor to program output voltage to
any level between zero and 34.5V. The current reference
architecture makes load regulation independent of output
voltage. The LT3088 is stable with or without input and
output capacitors.
Internal protection circuitry includes reverse-battery and
reverse-current protection, current limiting and thermal
limiting. The LT3088 is offered in the 3-lead SOT-223,
3-lead DD-Pak, and an 8-lead 3mm × 3mm DFN package.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
Wide Safe Operating Area Supply
LT3088
VIN
IN
50µA
+
SET
30.1k
OUT
10µF*
*OPTIONAL
750Ω*
IOUT
1.5V
800mA
3088 TA01a
SET Pin Current
51.0
50.8
ILOAD = 2mA
50.6
50.4
50.2
50.0
49.8
49.6
49.4
49.2
49.0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3088 G01
For more information www.linear.com/LT3088
3088fb
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