LT3060 Series
45V V , Micropower,
IN
Low Noise, 100mA Low
Dropout, Linear Regulator
DescripTion
FeaTures
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
externalcapacitorprovidesprogrammablelownoiserefer-
ence performance and output soft-start functionality. 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.
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Input Voltage Range: 1.6V to 45V
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Output Current: 100mA
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Quiescent Current: 40µA
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Dropout Voltage: 300mV
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Low Noise: 30µV
(10Hz to 100kHz)
REF
RMS
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Adjustable Output: V
= 600mV
Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
Output Tolerance: 2ꢀ Over Line, Load and
Temperature
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Single Capacitor Soft-Starts Reference and Lowers
Output Noise
Shutdown Current: < 1µA
Reverse Battery Protection
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.
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Current Limit Foldback Protection
Thermal Limit Protection
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 and 5V, and as an
adjustable voltage regulator with an output voltage range
fromthe600mVreferenceto44.5V.TheLT3060regulators
are offered in the thermally enhanced 8-lead TSOT-23 and
8-lead (2mm × 2mm × 0.75mm) DFN packages.
8-Lead 2mm × 2mm × 0.75mm DFN and 8-Lead
™
ThinSOT Packages
applicaTions
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Battery-Powered Systems
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Automotive Power Supplies
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Industrial Power Supplies
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Avionic Power Supplies
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Portable Instruments
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.
Dropout Voltage
Typical applicaTion
350
2.5V Low Noise Regulator
T
= 25°C
J
300
250
200
150
100
50
V
OUT
IN
OUT
2.5V AT 100mA
30µV NOISE
V
RMS
IN
1µF
LT3060-2.5
C
FF
10nF
3V TO
45V
10µF
SHDN
ADJ
GND REF/BYP
10nF
3060 TA01
0
0
10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (mA)
3060 TA02
3060fa
1