n Wide Input Voltage Range: 3V to 80V
n Low Quiescent Current: 46μA
n Low Dropout Voltage: 300mV
n Output Current: 50mA
n PWRGD Flag with Programmable Delay
n No Protection Diodes Needed
n Adjustable Output from 1.24V to 60V
n 1μA Quiescent Current in Shutdown
n Stable with 1μF Output Capacitor
n Stable with Ceramic, Tantalum, and Aluminum
n Reverse-Battery Protection
n No Reverse Current Flow from Output to Input
n Thermal Limiting
n Thermally Enhanced 12-Lead MSOP and
10-Pin (3mm × 3mm) DFN Packages
n Low Current High Voltage Regulators
n Regulator for Battery-Powered Systems
n Telecom Applications
n Automotive Applications
50mA, 3V to 80V Low
Dropout Micropower Linear
Regulator with PWRGD
The LT®3011 is a high voltage, micropower, low dropout
linear regulator. The device is capable of supplying 50mA of
output current with a dropout voltage of 300mV. Designed
for use in battery-powered high voltage systems, the low
quiescent current (46μA operating and 1μA in shutdown)
is well controlled in dropout, making the LT3011 an ideal
The LT3011 includes a PWRGD ﬂag to indicate output
regulation. The delay between regulated output level and
ﬂag indication is programmable with a single capacitor.
The LT3011 also has the ability to operate with very small
output capacitors; it is stable with only 1μF on the output.
Small ceramic capacitors can be used without the addition
of any series resistance (ESR) as is common with other
regulators. Internal protection circuitry includes reverse-
battery protection, current limiting, thermal limiting, and
reverse current protection.
The LT3011 features an adjustable output with a 1.24V
reference voltage. The device is available in the thermally
enhanced 12-lead MSOP and the low proﬁle (0.75mm)
10-pin (3mm × 3mm) DFN package, both providing excel-
lent thermal characteristics.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
5V Supply with Shutdown
10 20 30 40
OUTPUT CURRENT (mA)