LINEAR TECHNOLOGY LT3010, LT3010-5 Technical data

LT3010/LT3010-5

50mA, 3V to 80V

Low Dropout

Micropower Linear Regulator

FEATURES

n

Wide Input Voltage Range: 3V to 80V

n

Low Quiescent Current: 30μA

n

Low Dropout Voltage: 300mV

n

Output Current: 50mA

n

Thermally Enhanced 8-Lead MSOP Package

n

No Protection Diodes Needed

n

Fixed Output Voltage: 5V (LT3010-5)

n

Adjustable Output from 1.275V to 60V (LT3010)

n

1μA Quiescent Current in Shutdown

n

Stable with 1μF Output Capacitor

n

Stable with Aluminum, Tantalum or Ceramic

Capacitors

n

Reverse-Battery Protection

n

No Reverse Current Flow from Output

n

Thermal Limiting

APPLICATIONS

n

Low Current High Voltage Regulators

n

Regulator for Battery-Powered Systems

n

Telecom Applications

n

Automotive Applications

DESCRIPTION

The LT®3010 is a high voltage, micropower low dropout
linear regulator. The device is capable of supplying 50mA
output current with a dropout voltage of 300mV. Designed
for use in battery-powered or high voltage systems, the low
quiescent current (30μA operating and 1μA in shutdown)
makes the LT3010 an ideal choice. Quiescent current is
also well controlled in dropout.

Other features of the LT3010 include the ability to operate
with very small output capacitors. The regulators are stable
with only 1μF on the output while most older devices re­quire between 10μF and 100μF for stability. Small ceramic
capacitors can be used without the necessary addition of
ESR as is common with other regulators. Internal protec­tion circuitry includes reverse-battery protection, current
limiting, thermal limiting and reverse current protection.

The device is available in a fi xed output voltage of 5V and
as an adjustable device with a 1.275V reference voltage.
The LT3010 regulator is available in the 8-lead MSOP pack­age with an exposed pad for enhanced thermal handling
capability.

L, 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

IN

LT3010-5

SHDN

OUT

SENSE

GND

30105 TA01

V

SHDN

V

IN

5.4V TO
80V

(PIN 5)

<0.3V
>2.0V

1μF

OUTPUT

OFF

ON

1μF

V

OUT

5V
50mA

350

300

250

200

150

100

DROPOUT VOLTAGE (mV)

50

0

0

Dropout Voltage

10 20 30 50

OUTPUT CURRENT (mA)

40

30105 TA02

30105fc

1

LT3010/LT3010-5

ABSOLUTE MAXIMUM RATINGS

PIN CONFIGURATION

(Note 1)

IN Pin Voltage ........................................................ ±80V

OUT Pin Voltage ..................................................... ±60V

IN to OUT Differential Voltage ................................ ±80V

ADJ Pin Voltage ....................................................... ±7V

SHDN Pin Input Voltage ......................................... ±80V

Output Short-Circuit Duration ......................... Indefi nite

Storage Temperature Range .................. –65°C to 150°C

Operating Junction Temperature Range

(Notes 3, 10, 11)

OUT

SENSE/ADJ*

GND

*SENSE FOR LT3010-5, ADJ FOR LT3010

= 125°C (LT3010E), θJA = 40°C/W, θJC = 16°C/W†

T

JMAX

= 140°C (LT3010H), θJA = 40°C/W, θJC = 16°C/W†

T

JMAX

SEE APPLICATIONS INFORMATION SECTION.

EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB

TOP VIEW

1
2

NC

3
4

MS8E PACKAGE

8-LEAD PLASTIC MSOP

†MEASURED AT BOTTOM PAD

8
7

9

6
5

IN
NC
NC

SHDN

LT3010E ............................................. –40°C to 125°C

LT3010H ............................................–40°C to 140°C

Lead Temperature (Soldering, 10 sec) ................. 300°C

ORDER INFORMATION

LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE

LT3010EMS8E#PBF LT3010EMS8E#TRPBF LTZF 8-Lead Plastic MSOP –40°C to 125°C
LT3010EMS8E-5#PBF LT3010EMS8E-5#TRPBF LTAEF 8-Lead Plastic MSOP –40°C to 125°C
LT3010HMS8E#PBF LT3010HMS8E#TRPBF LTCLP 8-Lead Plastic MSOP –40°C to 140°C
LT3010HMS8E-5#PBF LT3010HMS8E-5#TRPBF LTCLQ 8-Lead Plastic MSOP –40°C to 140°C

LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE

LT3010EMS8E LT3010EMS8E#TR LTZF 8-Lead Plastic MSOP –40°C to 125°C
LT3010EMS8E-5 LT3010EMS8E-5#TR LTAEF 8-Lead Plastic MSOP –40°C to 125°C
LT3010HMS8E LT3010HMS8E #TR LTCLP 8-Lead Plastic MSOP –40°C to 140°C
LT3010HMS8E-5 LT3010HMS8E-5 #TR LTCLQ 8-Lead Plastic MSOP –40°C to 140°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.

For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:

http://www.linear.com/leadfree/

http://www.linear.com/tapeandreel/

(LT3010E) The

ELECTRICAL CHARACTERISTICS

l denotes the specifi cations which apply over the –40°C to

125°C operating temperature range, otherwise specifi cations are at TJ = 25°C.

PARAMETER CONDITIONS MIN TYP MAX UNITS

Minimum Input Voltage LT3010 I
Regulated Output Voltage

(Note 3)
ADJ Pin Voltage (Notes 2, 3) LT3010 VIN = 3V, I

Line Regulation LT3010-5 ΔVIN = 5.5V to 80V, I

Load Regulation LT3010-5 VIN = 6V, ΔI

LT3010-5 V
6V < V

4V < V

LT3010 (Note 2) ΔV

V

= 50mA

LOAD

= 5.5V, I

IN

IN

IN

= 3V to 80V, I

IN

= 6V, ΔI

IN

= 1mA

LOAD

< 80V, 1mA < I

= 1mA

LOAD

< 80V, 1mA < I

= 1mA to 50mA

LOAD

= 1mA to 50mA l

LOAD

LOAD

LOAD

< 50mA l

LOAD

< 50mA l

LOAD

= 1mA

= 1mA

l

4.925

4.850

1.258

1.237

l

34 V

5.000

5.000

1.275

1.275

5.075

5.150

1.292

1.313

3

15

3

13

25 50

90

mV
mV

mV
mV

30105fc

2

V
V

V
V

LT3010/LT3010-5

ELECTRICAL CHARACTERISTICS

(LT3010E) The l denotes the specifi cations which apply over the –40°C to

= 0.5V
= 0.5V

= 25°C.

J

, f

P-P

RIPPLE

, f

P-P

RIPPLE

= 120Hz, I
= 120Hz, I

LOAD
LOAD

= 50mA
= 50mA

10 20

32

100 150

190

200 260

350

300 370

550

l
l
l
l

l
l

0.3

30
100
400

1.8

1.3

1.1

60
180
700

3.3

2V

0.5

0.120.5

65

75

60

68

mV
mV

mV
mV

mV
mV

mV
mV

μA
μA
μA

mA

RMS

μA
μA

dB
dB

140 mA

l

60

l

60

l

10

8

6mA

20

15

mA
mA

μA
μA

125°C operating temperature range, otherwise specifi cations are at T

PARAMETER CONDITIONS MIN TYP MAX UNITS

= 4V, ΔI

IN

= 4V, ΔI

IN

= 50mA, BW = 10Hz to 100kHz 100 μV

LOAD

Dropout Voltage
V

= V

IN

OUT(NOMINAL)

(Notes 4, 5)

GND Pin Current
V

= V

IN

OUT(NOMINAL)

(Notes 4, 6)

Output Voltage Noise C

LT3010 (Note 2) V
V

= 1mA

I

LOAD

I

= 1mA l

LOAD

I

= 10mA

LOAD

I

= 10mA l

LOAD

I

= 50mA

LOAD

I

= 50mA l

LOAD

= 0mA

I

LOAD

I

= 1mA

LOAD

I

= 10mA

LOAD

I

= 50mA

LOAD

= 10μF, I

OUT

ADJ Pin Bias Current (Note 7) 50 100 nA
Shutdown Threshold V

SHDN Pin Current
(Note 8)

Quiescent Current in Shutdown V
Ripple Rejection LT3010 V

Current Limit V

Input Reverse Leakage Current VIN = –80V, V
Reverse Output Current

(Note 9)

= Off to On

OUT

V

= On to Off

OUT

= 0V

V

SHDN

V

= 6V

SHDN

= 6V, V

IN

= 0V 1 5 μA

SHDN

LT3010-5 V

= 7V, V

IN

OUT

= 0V
LT3010-5 V
LT3010 (Note 2) V

= 0V

OUT

LT3010-5 V
LT3010 (Note 2) V

= 7V(Avg), V

IN

= 7V(Avg), V

IN

= 6V, ΔV

IN

= 4V, ΔV

IN

= 5V, VIN < 5V

OUT

= 1.275V, VIN < 1.275V

OUT

= 1mA to 50mA

LOAD

= 1mA to 50mA l

LOAD

RIPPLE
RIPPLE

= –0.1V

OUT

= –0.1V

OUT

V

(LT3010H) The l denotes the specifi cations which apply over the –40°C to 140°C operating temperature range, otherwise
specifi cations are at TJ = 25°C.

PARAMETER CONDITIONS MIN TYP MAX UNITS

Minimum Input Voltage LT3010 I
Regulated Output Voltage

(Note 3)

LT3010-5 V
6V < V

ADJ Pin Voltage (Notes 2, 3) LT3010 VIN = 3V, I

4.25V < V

LOAD

= 5.5V, I

IN

= 50mA

= 1mA

LOAD

< 80V, 1mA < I

IN

= 1mA

LOAD

< 80V, 1mA < I

IN

Line Regulation LT3010-5 ΔVIN = 5.5V to 80V, I

LT3010 (Note 2) ΔV

Load Regulation LT3010-5 VIN = 6V, ΔI

V
LT3010 (Note 2) VIN = 4V, ΔI

V

= 3V to 80V, I

IN

= 6V, ΔI

IN

= 4.25V, ΔI

IN

= 1mA to 50mA

LOAD

= 1mA to 50mA l

LOAD

= 1mA to 50mA

LOAD

LOAD

< 50mA l

LOAD

< 50mA l

LOAD

= 1mA

LOAD

= 1mA

LOAD

= 1mA to 50mA l

l

4.925

4.825

1.258

1.230

l
l

3 4.25 V

5.000

5.000

1.275

1.275

5.075

5.15

1.292

1.313

3

20

3

15

25 50

100

10 20

45

mV
mV

mV
mV

mV
mV

30105fc

3

V
V

V
V

LT3010/LT3010-5

ELECTRICAL CHARACTERISTICS

(LT3010H) The l denotes the specifi cations which apply over the –40°C to

= 0.5V
= 0.5V

= 25°C.

J

, f

P-P

RIPPLE

, f

P-P

RIPPLE

= 120Hz, I
= 120Hz, I

LOAD
LOAD

= 50mA
= 50mA

100 150

220

200 260

380

300 370

600

l
l
l
l

l
l

0.3

30
100
400

1.8

1.3

0.8

80
200
750

3.5

2V

0.5

0.120.5

65
60

l
l

55

l

55

l

75
68

140 mA

6mA

10

20

8

15

mV
mV

mV
mV

mV
mV

μA
μA
μA

mA

RMS

μA
μA

dB
dB

mA
mA

μA
μA

140°C operating temperature range, otherwise specifi cations are at T

PARAMETER CONDITIONS MIN TYP MAX UNITS

Dropout Voltage

= V

V

IN

OUT(NOMINAL)

(Notes 4, 5)

GND Pin Current
V

= V

IN

OUT(NOMINAL)

(Notes 4, 6)

Output Voltage Noise C
ADJ Pin Bias Current (Note 7) 50 100 nA
Shutdown Threshold V

SHDN Pin Current
(Note 8)

Quiescent Current in Shutdown V
Ripple Rejection LT3010 V

Current Limit V

Input Reverse Leakage Current VIN = –80V, V
Reverse Output Current

(Note 9)

= 1mA

I

LOAD

I

= 1mA l

LOAD

I

= 10mA

LOAD

I

= 10mA l

LOAD

I

= 50mA

LOAD

I

= 50mA l

LOAD

= 0mA

I

LOAD

I

= 1mA

LOAD

I

= 10mA

LOAD

I

= 50mA

LOAD

= 10μF, I

OUT

= Off to On

OUT

V

= On to Off

OUT

= 0V

V

SHDN

V

= 6V

SHDN

= 6V, V

IN

LT3010-5 V

= 7V, V

IN

LT3010-5 V
LT3010 (Note 2) V

LT3010-5 V
LT3010 (Note 2) V

= 250mA, BW = 10Hz to 100kHz 100 μV

LOAD

= 0V 1 5 μA

SHDN

= 7V(Avg), V

OUT

= 0V

OUT

IN

= 7V(Avg), V

IN

= 6V, ΔV

IN

= 4.25V, ΔV

IN

= 0V

= 5V, VIN < 5V

OUT

= 1.275V, VIN < 1.275V

OUT

OUT

RIPPLE
RIPPLE

= –0.1V

= –0.1V

OUT

V

Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.

Note 2: The LT3010 (adjustable version) is tested and specifi ed for these
conditions with the ADJ pin connected to the OUT pin.

Note 3: Operating conditions are limited by maximum junction
temperature. The regulated output voltage specifi cation will not apply
for all possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range must be
limited. When operating at maximum output current, the input voltage
range must be limited.

Note 4: To satisfy requirements for minimum input voltage, the LT3010
(adjustable version) is tested and specifi ed for these conditions with an
external resistor divider (249k bottom, 392k top) for an output voltage of

3.3V. The external resistor divider will add a 5μA DC load on the output.
Note 5: Dropout voltage is the minimum input to output voltage differential

needed to maintain regulation at a specifi ed output current. In dropout, the
output voltage will be equal to (V

Note 6: GND pin current is tested with V

IN

– V

DROPOUT

= V

IN

).

(nominal) and a current

OUT

source load. This means the device is tested while operating in its dropout
region. This is the worst-case GND pin current. The GND pin current will
decrease slightly at higher input voltages.

Note 7: ADJ pin bias current fl ows into the ADJ pin.
Note 8: SHDN pin current fl ows out of the SHDN pin.
Note 9: Reverse output current is tested with the IN pin grounded and the

OUT pin forced to the rated output voltage. This current fl ows into the OUT
pin and out the GND pin.

Note 10: The LT3010E is guaranteed to meet performance specifi cations
from 0°C to 125°C operating junction temperature. Specifi cations over
the –40°C to 125°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
The LT3010H is tested to the LT3010H Electrical Characteristics table at
140°C operating junction temperature. High junction temperatures degrade
operating lifetimes. Operating lifetime is derated at junction temperatures
greater than 125°C.

Note 11: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C (LT3010E) or 140°C (LT3010H) when
overtemperature protection is active. Continuous operation above the
specifi ed maximum operating junction temperature may impair device
reliability.

30105fc

4

LT3010/LT3010-5

TYPICAL PERFORMANCE CHARACTERISTICS

Typical Dropout Voltage Guaranteed Dropout Voltage Dropout Voltage

500

450

400

350

300

250

200

150

DROPOUT VOLTAGE (mV)

100

50

0

0

TJ = 125°C

= 25°C

T

J

1052015 30 35 4525 50

OUTPUT CURRENT (mA)

40

30105 G01

600

500

400

300

200

DROPOUT VOLTAGE (mV)

100

0

= TEST POINTS

TJ ≤ 125°C

TJ ≤ 25°C

10 20 30 40

OUTPUT CURRENT (mA)

505015253545

30105 G02

Quiescent Current LT3010 ADJ Pin Voltage LT3010-5 Output Voltage

40

35

V

30

25

VIN > 6V

= ∞, IL = 0 (LT3010-5)

R

20

L

= 250k, IL = 5μA (LT3010)

R

L

15

10

QUIESCENT CURRENT (μA)

5

0

–25 0 50

–50

SHDN

V

25

TEMPERATURE (°C)

SHDN

= V

= 0V

IN

75 100 125 150

30105 G04

1.295
IL = 1mA

1.290

1.285

1.280

1.275

1.270

ADJ PIN VOLTAGE (V)

1.265

1.260

1.255

–50 0 50 75–25 25 100 150125

TEMPERATURE (°C)

30105 G05

500

450

400

350

300

250

200

150

DROPOUT VOLTAGE (mV)

100

50

0

–50 0 50 75–25 25 100 150125

5.08
IL = 1mA

5.06

5.04

5.02

5.00

4.98

OUTPUT VOLTAGE (V)

4.96

4.94

4.92

–50 0 50 75–25 25 100 150125

IL = 50mA

IL = 10mA

IL = 1mA

TEMPERATURE (°C)

TEMPERATURE (°C)

30105 G03

30105 G06

LT3010 Quiescent Current LT3010-5 Quiescent Current LT3010 GND Pin Current

50

TJ = 25°C

45

= ∞

R

L

40

35

30

25

20

15

QUIESCENT CURRENT (μA)

10

5

0

0

2143679510

INPUT VOLTAGE (V)

V

V

SHDN

SHDN

= V

= 0V

IN

8

30105 G07

200

TJ = 25°C

180

= ∞

R

L

160

140

120

100

80

60

QUIESCENT CURRENT (μA)

40

20

0

0

2143679510

INPUT VOLTAGE (V)

V

V

SHDN

SHDN

= V

= 0V

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

IN

8

30105 G08

GND PIN CURRENT (mA)

0.4

0.2

0

0

2143679510

RL = 25.5Ω

I

I

RL = 1.27k IL = 1mA*

INPUT VOLTAGE (V)

TJ = 25°C
*FOR V

= 50mA*

L

RL = 127Ω

= 10mA*

L

= 1.275V

OUT

RL = 51Ω

= 25mA*

I

L

8

30105 G09

30105fc

5