LT3060_15 Datasheet, PDF (1/26 Pages) Linear Technology – 45V VIN, Micropower, Low Noise, 100mA Low Dropout, Linear Regulator

Features
n _{Input Voltage Range: 1.6V to 45V}
n _{Output Current: 100mA}
n _{Quiescent Current: 40µA}
n _{Dropout Voltage: 300mV}
n _{Low Noise: 30µVRMS (10Hz to 100kHz)}
n _{Adjustable Output: VREF = 600mV}
n _{Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V,}
5V, 15V
n _{Output Tolerance: ±2% Over Line, Load and}
Temperature
n _{Single Capacitor Soft-Starts Reference and Lowers}
Output Noise
n _{Shutdown Current: < 1µA}
n _{Reverse Battery Protection}
n _{Current Limit Foldback Protection}
n _{Thermal Limit Protection}
n _{8-Lead 2mm × 2mm × 0.75mm DFN and 8-Lead}
ThinSOT^™ Packages
Applications
n _{Battery-Powered Systems}
n _{Automotive Power Supplies}
n _{Industrial Power Supplies}
n _{Avionic Power Supplies}
n _{Portable Instruments}
LT3060 Series
45V V_IN, Micropower,
Low Noise, 100mA Low
Dropout, Linear Regulator
Description
The LT^®3060 series are micropower, low dropout voltage
(LDO) linear regulators that operate over a 1.6V to 45V
input supply range. The devices supply 100mA of output
current with a typical dropout voltage of 300mV. A single
external capacitor provides programmable low noise
reference performance and output soft-start functional-
ity. The LT3060’s quiescent current is merely 40μA and
provides fast transient response with a minimum 2.2μF
output capacitor. In shutdown, quiescent current is less
than 1μA and the reference soft-start capacitor is reset.
The LT3060 regulators optimize stability and transient
response with low ESR, ceramic output capacitors.
The regulators do not require the addition of ESR as is
common with other regulators.
Internal protection circuitry includes reverse-battery
protection, reverse-output protection, reverse-current
protection, current limit with foldback and thermal
shutdown. The LT3060 series are available in fixed output
voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V and 15V, and as
an adjustable voltage regulator with an output voltage range
from the 600mV reference to 44.5V. The LT3060 regulators
are offered in the thermally enhanced 8-lead TSOT-23 and
8-lead (2mm × 2mm × 0.75mm) DFN packages.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
Typical Application
2.5V Low Noise Regulator
IN
OUT
V_IN
3V TO
1µF
LT3060-2.5
C_FF
45V
10nF
SHDN
ADJ
GND REF/BYP
V_OUT
2.5V AT 100mA
30µV_RMS NOISE
10µF
10nF
3060 TA01
Dropout Voltage
350
T_J = 25°C
300
250
200
150
100
50
0
0 10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (mA)
3060 TA02
For more information www.linear.com/LT3060
3060fc
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