LT3063 Series
45V VIN, Micropower,
Low Noise, 200mA LDO
with Active Output Discharge
DESCRIPTION
FEATURES
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Input Voltage Range: 1.6V to 45V
Output Current: 200mA
Output Discharge
Quiescent Current: 45µA
Dropout Voltage: 300mV
Low Noise: 30µVRMS (10Hz to 100kHz)
Adjustable Output (VREF = 600mV)
Fixed Output Voltages: 3.3V, 5V
Output Tolerance: ±2% Over Load, Line, and
Temperature
Single Capacitor Soft-Starts Reference and Lowers
Output Noise
Shutdown Current < 3µA
Reverse Battery Protection
Current Limit Foldback and Thermal Limit Protection
8-Lead 2mm × 3mm DFN and MSOP Packages
APPLICATIONS
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The LT®3063 is a micropower, low dropout (LDO) linear
regulator that operates over a 1.6V to 45V supply range
and is available in a series of fixed output and adjustable
versions. The device supplies 200mA of output current
with a typical dropout voltage of 300mV. A single external
capacitor provides programmable low noise reference
performance and output soft-start functionality. The
LT3063’s quiescent current is merely 45μA and provides
fast transient response with a minimum 3.3μF output capacitor. In shutdown, quiescent current is less than 3μA
and the reference soft-start capacitor is reset.
The LT3063 features an NMOS pull-down that discharges
the output if SHDN or IN is driven low.
Internal protection circuitry includes reverse-battery protection, reverse-current protection, current limit with foldback
and thermal shutdown.
The LT3063 is available in fixed output voltages of 3.3V
and 5V, and as an adjustable device with an output voltage
range from the 600mV reference up to 19V. The LT3063
is offered in the thermally enhanced 8-lead 2mm × 3mm
DFN and MSOP packages.
Battery Powered Systems
Automotive Power Supplies
Industrial Power Supplies
Avionic Power Supplies
Portable Instruments
Medical 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.
TYPICAL APPLICATION
3.3V Low Noise Regulator
1µF
OUT
LT3063-3.3
SHDN
GND
3.3V
10µF
10nF
ADJ
0.5V/DIV
IN
VIN
3.9V
LT3063-3.3 Active Output Discharge
VOUT
3.3V
200mA
BYP
1V
10nF
3063 TA01
SHDN
0V
1ms/DIV
3063 TA01a
COUT = 10µF
IL = 0
3063fa
For more information www.linear.com/LT3063
1
LT3063 Series
ABSOLUTE MAXIMUM RATINGS
(Note 1)
IN Pin Voltage..........................................................±50V
OUT Pin Voltage............................................... +20V, –1V
Input to Output Differential Voltage (Note 2)............±50V
ADJ Pin Voltage.......................................................±50V
SHDN Pin Voltage....................................................±50V
REF/BYP Pin Voltage..................................... –0.3V to 1V
Output Short-Circuit Duration........................... Indefinite
Operating Junction Temperature (Notes 3, 5, 12)
LT3063E, LT3063I.............................. –40°C to 125°C
LT3063MP.......................................... –55°C to 150°C
LT3063H............................................. –40°C to 150°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
MS8E Package Only........................................... 300°C
PIN CONFIGURATION
TOP VIEW
ADJ 2
OUT 3
OUT 4
TOP VIEW
8 GND
REF/BYP 1
9
GND
REF/BYP
ADJ
OUT
OUT
7 SHDN
6 IN
5 IN
9
GND
8
7
6
5
GND
SHDN
IN
IN
MS8E PACKAGE
8-LEAD PLASTIC MSOP
DCB PACKAGE
8-LEAD (2mm × 3mm) PLASTIC DFN
TJMAX = 150°C, θJA = 29°C/W TO 45°C/W, θJC = 5°C/W to 10°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
TJMAX = 150°C, θJA = 38°C/W TO 45°C/W, θJC = 3.5°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
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http://www.linear.com/product/LT3063#orderinfo
LEAD FREE FINISH
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
LT3063EDCB#PBF
LT3063EDCB#TRPBF
LGMZ
8-Lead (2mm × 3mm) Plastic DFN
–40°C to 125°C
TEMPERATURE RANGE
LT3063IDCB#PBF
LT3063IDCB#TRPBF
LGMZ
8-Lead (2mm × 3mm) Plastic DFN
–40°C to 125°C
LT3063HDCB#PBF
LT3063HDCB#TRPBF
LGMZ
8-Lead (2mm × 3mm) Plastic DFN
–40°C to 150°C
LT3063MPDCB#PBF
LT3063MPDCB#TRPBF
LGMZ
8-Lead (2mm × 3mm) Plastic DFN
–55°C to 150°C
LT3063EMS8E#PBF
LT3063EMS8E#TRPBF
LTGNB
8-Lead Plastic MSOP
–40°C to 125°C
LT3063IMS8E#PBF
LT3063IMS8E#TRPBF
LTGNB
8-Lead Plastic MSOP
–40°C to 125°C
LT3063HMS8E#PBF
LT3063HMS8E#TRPBF
LTGNB
8-Lead Plastic MSOP
–40°C to 150°C
LT3063MPMS8E#PBF
LT3063MPMS8E#TRPBF
LTGNB
8-Lead Plastic MSOP
–55°C to 150°C
LT3063EDCB-3.3#PBF
LT3063EDCB-3.3#TRPBF
LGYV
8-Lead (2mm x 3mm) Plastic DFN
–40°C to 125°C
LT3063IDCB-3.3#PBF
LT3063IDCB-3.3#TRPBF
LGYV
8-Lead (2mm x 3mm) Plastic DFN
–40°C to 125°C
LT3063EDCB-5#PBF
LT3063EDCB-5#TRPBF
LGYW
8-Lead (2mm x 3mm) Plastic DFN
–40°C to 125°C
LT3063IDCB-5#PBF
LT3063IDCB-5#TRPBF
LGYW
8-Lead (2mm x 3mm) Plastic DFN
–40°C to 125°C
LT3063EMS8E-3.3#PBF
LT3063EMS8E-3.3#TRPBF
LTGZD
8-Lead Plastic MSOP
–40°C to 125°C
LT3063IMS8E-3.3#PBF
LT3063IMS8E-3.3#TRPBF
LTGZD
8-Lead Plastic MSOP
–40°C to 125°C
LT3063EMS8E-5#PBF
LT3063EMS8E-5#TRPBF
LTGZC
8-Lead Plastic MSOP
–40°C to 125°C
LT3063IMS8E-5#PBF
LT3063IMS8E-5#TRPBF
LTGZC
8-Lead Plastic MSOP
–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/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
2
3063fa
For more information www.linear.com/LT3063
LT3063 Series
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
PARAMETER
CONDITIONS
Minimum Input Voltage (Note 4)
ILOAD = 200mA
Regulated Output Voltage (Note 5)
LT3063-3.3: VIN = 3.9, ILOAD = 1mA
LT3063-3.3: 3.9V < VIN < 45V, 1mA < ILOAD < 200mA
LT3063-5: VIN = 5.6, ILOAD = 1mA
LT3063-5: 5.6V < VIN < 45V, 1mA < ILOAD < 200mA
MIN
TYP
MAX
UNITS
1.6
2.1
V
3.3
l
3.267
3.234
4.950
4.900
3.333
3.366
5.050
5.100
V
V
V
V
VIN = 2.1V, ILOAD = 1mA
2.1V < VIN < 45V, 1mA < ILOAD < 200mA (E-, I-Grades)
2.1V < VIN < 45V, 1mA < ILOAD < 200mA (MP-, H-Grades)
l
l
594
588
585
600
600
600
606
612
612
mV
mV
mV
LT3063-3.3: ΔVIN = 3.9V to 45V (E-, I-Grades)
LT3063-5: ΔVIN = 5.6V to 45V (E-, I-Grades)
l
l
1.6
3.1
22
33
mV
mV
LT3063: ΔVIN = 2.1V to 45V (E-, I-Grades)
LT3063: ΔVIN = 2.1V to 45V (MP-, H-Grades)
l
l
0.5
4
6
mV
mV
LT3063-3.3: VIN = 3.9V (E-, I-Grades)
LT3063-5: VIN = 5.6V (E-, I-Grades)
l
l
7.1
7.6
28
39
mV
mV
LT3063: VIN = 2.1V (E-, I-Grades)
LT3063: VIN = 2.1V (MP-, H-Grades)
l
l
0.3
4
9
mV
mV
ILOAD = 1mA
ILOAD = 1mA
65
l
110
180
mV
mV
ILOAD = 10mA
ILOAD = 10mA
130
l
180
270
mV
mV
ILOAD = 100mA
ILOAD = 100mA
250
l
290
430
mV
mV
ILOAD = 200mA
ILOAD = 200mA
300
l
360
530
mV
mV
GND Pin Current
VIN = VOUT(NOMINAL) + 0.6V
(Notes 6, 8)
ILOAD = 0
ILOAD = 1mA
ILOAD = 10mA
ILOAD = 100mA
ILOAD = 200mA
l
l
l
l
l
45
70
225
2
5
90
120
500
4
10
µA
µA
µA
mA
mA
Output Voltage Noise
COUT = 10µF, ILOAD = 200mA, CREF/BYP = 0.01µF
VOUT = 600mV, BW = 10Hz to 100kHz
ADJ Pin Voltage (Notes 4, 5)
Line Regulation (Note 4)
ILOAD = 1mA
Load Regulation (Note 4)
ILOAD = 1mA to 200mA
Dropout Voltage
VIN = VOUT(NOMINAL)
(Notes 6, 7)
ADJ Pin Bias Current (Notes 4, 9)
l
l
5
30
µVRMS
l
15
60
nA
0.8
0.7
1.5
V
V
1.2
