LT3060
45V V , Micropower,
IN
Low Noise, 100mA Low
Dropout, Linear Regulator
DESCRIPTION
FEATURES
The LT®3060 is a micropower, low dropout voltage (LDO)
linear regulator that operates over a 1.6V to 45V input
supplyrange.Thedevicesupplies100mAofoutputcurrent
with a typical dropout voltage of 300mV. A single external
capacitor provides programmable low noise reference
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
Output Tolerance: 2% Over Line, Load and
Temperature
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Single Capacitor Soft-Starts Reference and Lowers
Output Noise
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Shutdown Current: < 1ꢀA
Reverse Battery Protection
Current Limit Foldback Protection
Thermal Limit Protection
8-Lead 2mm × 2mm × 0.75mm DFN and 8-Lead
The LT3060 optimizes stability and transient response
with low ESR, ceramic output capacitors. The regulator
does not require the addition of ESR as is common with
other regulators. The LT3060 typically provides 0.1% line
regulation and 0.03% load regulation.
™
ThinSOT Packages
Internal protection circuitry includes reverse-battery
protection, reverse-output protection, reverse-current
protection,currentlimitwithfoldbackandthermalshutdown.
TheLT3060isanadjustablevoltageregulatorwithanoutput
voltage range from the 600mV reference to 44.5V. The
LT3060isofferedinthethermallyenhanced8-leadTSOT-23
and 8-lead (2mm × 2mm × 0.75mm) DFN packages.
APPLICATIONS
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Battery-Powered Systems
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Automotive Power Supplies
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Industrial Power Supplies
Avionic Power Supplies
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Portable Instruments
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a Trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
Dropout Voltage
TYPICAL APPLICATION
350
1.8V Low Noise Regulator
T
= 25°C
J
300
250
200
150
100
50
V
OUT
IN
OUT
1.8V AT 100mA
30ꢀV NOISE
V
RMS
IN
1ꢀF
LT3060
SHDN
249k
1%
C
FF
10nF
2.3V TO
45V
10ꢀF
ADJ
124k
1%
GND REF/BYP
10nF
3060 TA01
0
0
10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (mA)
3060 TA02
3060f
1