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Linear Technology Electronic Components Datasheet

LT3011 Datasheet

3V to 80V Low Dropout Micropower Linear Regulator

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FEATURES
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
Capacitors
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
APPLICATIONS
n Low Current High Voltage Regulators
n Regulator for Battery-Powered Systems
n Telecom Applications
n Automotive Applications
LT3011
50mA, 3V to 80V Low
Dropout Micropower Linear
Regulator with PWRGD
DESCRIPTION
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
choice.
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.
TYPICAL APPLICATION
5V Supply with Shutdown
VIN
3V TO
80V
VSHDN
<0.3V
>2.0V
1μF 1.6M
POWER GOOD
OUTPUT
OFF
ON
IN OUT
LT3011
SHDN ADJ
PWRGD
GND CT
750k
249k
1000pF
VOUT
5V
50mA
1μF
3011 TA01
350
300
250
200
150
100
50
0
0
Dropout Voltage
10 20 30 40
OUTPUT CURRENT (mA)
50
3011 TA02
3011f
1


Linear Technology Electronic Components Datasheet

LT3011 Datasheet

3V to 80V Low Dropout Micropower Linear Regulator

No Preview Available !

LT3011www.DataSheet4U.com
ABSOLUTE MAXIMUM RATINGS (Note 1)
IN Pin Voltage .........................................................±80V
OUT Pin Voltage......................................................±60V
Input-to-Output Differential Voltage ........................±80V
ADJ Pin Voltage ........................................................±7V
SHDN Pin Voltage ...................................................±80V
CT Pin Voltage.................................................. 7V, –0.5V
PWRGD Pin Voltage ....................................... 80V, –0.5V
Output Short-Circuit Duration .......................... Indefinite
Storage Temperature Range................... –65°C to 150°C
Operating Junction Temperature
(Notes 3, 10, 11)
LT3011E, LT3011I .............................. –40°C to 125°C
LT3011H ............................................ –40°C to 150°C
Lead Temperature (Soldering, 10 sec)
MSE Package Only............................................ 300°C
PIN CONFIGURATION
TOP VIEW
OUT 1
ADJ 2
GND 3
NC 4
PWRGD 5
10 IN
9 NC
11 8 SHDN
7 NC
6 CT
DD PACKAGE
10-LEAD (3mm s 3mm) PLASTIC DFN
TJMAX = 150°C, θJA = 43°C/W, θJC = 16°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
TOP VIEW
NC 1
12 NC
OUT 2
11 IN
ADJ 3
GND 4
13
10 NC
9 SHDN
NC 5
8 NC
PWRGD 6
7 CT
MSE PACKAGE
12-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 40°C/W, θJC = 16°C/W
EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT3011EDD#PBF
LT3011IDD#PBF
LT3011EMSE#PBF
LT3011HMSE#PBF
LT3011IMSE#PBF
LEAD BASED FINISH
LT3011EDD
LT3011IDD
LT3011EMSE
LT3011HMSE
LT3011IMSE
TAPE AND REEL
LT3011EDD#TRPBF
LT3011IDD#TRPBF
LT3011EMSE#TRPBF
LT3011HMSE#TRPBF
LT3011IMSE#TRPBF
TAPE AND REEL
LT3011EDD#TR
LT3011IDD#TR
LT3011EMSE#TR
LT3011HMSE#TR
LT3011IMSE#TR
PART MARKING*
LDKQ
LDKQ
3011
3011
3011
PART MARKING*
LDKQ
LDKQ
3011
3011
3011
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
12-Lead Plastic MSOP
12-Lead Plastic MSOP
12-Lead Plastic MSOP
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
12-Lead Plastic MSOP
12-Lead Plastic MSOP
12-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
3011f
2


Part Number LT3011
Description 3V to 80V Low Dropout Micropower Linear Regulator
Maker Linear Technology
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LT3011 Datasheet PDF






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