1
LT3010/LT3010-5
3010f
s
Wide Input Voltage Range: 3V to 80V
s
Low Quiescent Current: 30
µ
A
s
Low Dropout Voltage: 300mV
s
Output Current: 50mA
s
Thermally Enhanced 8-Lead MSOP Package
s
No Protection Diodes Needed
s
Fixed Output Voltage: 5V (LT3010-5)
s
Adjustable Output from 1.275V to 60V (LT3010)
s
1
µ
A Quiescent Current in Shutdown
s
Stable with 1
µ
F Output Capacitor
s
Stable with Aluminum, Tantalum or Ceramic
Capacitors
s
Reverse-Battery Protection
s
No Reverse Current Flow from Output
s
Thermal Limiting
50mA, 3V to 80V
Low Dropout
Micropower Linear Regulator
, LTC and LT are registered trademarks of Linear Technology Corporation.
5V Supply with Shutdown
Dropout Voltage
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 (30
µ
A operating and 1
µ
A in shut-
down) 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 1
µ
F on the output while most older
devices require between 10
µ
F and 100
µ
F for stability.
Small ceramic capacitors can be used without the neces-
sary addition of ESR as is common with other regulators.
Internal protection circuitry includes reverse-battery pro-
tection, current limiting, thermal limiting and reverse
current protection.
The device is available in a fixed 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 han-
dling capability.
s
Low Current High Voltage Regulators
s
Regulator for Battery-Powered Systems
s
Telecom Applications
s
Automotive Applications
OUTPUT CURRENT (mA)
0
250
300
350
40
3010 TA02
200
150
10
20
30
50
100
50
0
DROPOUT VOLTAGE (mV)
IN
LT3010-5
SHDN
1
µ
F
V
IN
5.4V TO
80V
OUT
SENSE
GND
3010 TA01
V
OUT
5V
50mA
V
SHDN
(PIN 5)
<0.3V
>2.0V
NC
OUTPUT
OFF
ON
ON
1
µ
F
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
2
LT3010/LT3010-5
3010f
(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 ..................... Indefinite
Storage Temperature Range ............ 65
°
C to 150
°
C
Operating Junction Temperature Range
(Notes 3, 10, 11) ......................... 40
°
C to 125
°
C
Lead Temperature (Soldering, 10 sec)............ 300
°
C
*SENSE FOR LT3010-5, ADJ FOR LT3010
T
JMAX
= 125
°
C,
JA
= 40
°
C/ W,
JC
= 16
°
C/ W
SEE APPLICATIONS INFORMATION SECTION.
EXPOSED PAD IS GND
(MUST BE SOLDERED TO PCB)
MEASURED AT BOTTOM PAD
ORDER PART
NUMBER
MS8 PART MARKING
LT3010EMS8E
LT3010EMS8E-5
LTZF
LTAEF
ABSOLUTE AXI U RATI GS
W
W
W
U
PACKAGE/ORDER I FOR ATIO
U
U
W
ELECTRICAL CHARACTERISTICS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
1
2
3
4
OUT
SENSE/ADJ*
NC
GND
8
7
6
5
IN
NC
NC
SHDN
TOP VIEW
MS8E PACKAGE
8-LEAD PLASTIC MSOP
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Input Voltage
LT3010
I
LOAD
= 50mA
q
3
4
V
Regulated Output Voltage (Note 3)
LT3010-5
V
IN
= 5.5V, I
LOAD
= 1mA
4.925
5.000
5.075
V
6V < V
IN
< 80V, 1mA < I
LOAD
< 50mA
q
4.850
5.000
5.150
V
ADJ Pin Voltage
LT3010
V
IN
= 3V, I
LOAD
= 1mA
1.258
1.275
1.292
V
(Notes 2,3)
4V < V
IN
< 80V, 1mA < I
LOAD
< 50mA
q
1.237
1.275
1.313
V
Line Regulation
LT3010-5
V
IN
= 5.5V to 80V, I
LOAD
= 1mA
q
3
15
mV
LT3010 (Note 2)
V
IN
= 3V to 80V, I
LOAD
= 1mA
q
3
13
mV
Load Regulation
LT3010-5
V
IN
= 6V,
I
LOAD
= 1mA to 50mA
25
50
mV
V
IN
= 6V,
I
LOAD
= 1mA to 50mA
q
90
mV
LT3010 (Note 2)
V
IN
= 4V,
I
LOAD
= 1mA to 50mA
10
20
mV
V
IN
= 4V,
I
LOAD
= 1mA to 50mA
q
32
mV
Dropout Voltage
I
LOAD
= 1mA
100
150
mV
V
IN
= V
OUT(NOMINAL)
I
LOAD
= 1mA
q
190
mV
(Notes 4, 5)
I
LOAD
= 10mA
200
260
mV
I
LOAD
= 10mA
q
350
mV
I
LOAD
= 50mA
300
370
mV
I
LOAD
= 50mA
q
550
mV
GND Pin Current
I
LOAD
= 0mA
q
30
60
µ
A
V
IN
= V
OUT(NOMINAL)
I
LOAD
= 1mA
q
100
180
µ
A
(Notes 4, 6)
I
LOAD
= 10mA
q
400
700
µ
A
I
LOAD
= 50mA
q
1.8
3.3
mA
Output Voltage Noise
C
OUT
= 10
µ
F, I
LOAD
= 50mA, BW = 10Hz to 100kHz
100
µ
V
RMS
ADJ Pin Bias Current
(Note 7)
50
100
nA
Shutdown Threshold
V
OUT
= Off to On
1.3
2
V
V
OUT
= On to Off
0.3
0.8
V
SHDN Pin Current
V
SHDN
= 0V
0.5
2
µ
A
(Note 8)
V
SHDN
= 6V
0.1
0.5
µ
A
Quiescent Current in Shutdown
V
IN
= 6V, V
SHDN
= 0V
1
5
µ
A
The
q
denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
J
= 25
°
C.
3
LT3010/LT3010-5
3010f
ELECTRICAL CHARACTERISTICS
The
q
denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
J
= 25
°
C.
PARAMETER
CONDITIONS
MIN TYP
MAX
UNITS
Ripple Rejection
LT3010
V
IN
= 7V(Avg), V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz, I
LOAD
= 50mA
65
75
dB
LT3010-5
V
IN
= 7V(Avg), V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz, I
LOAD
= 50mA
60
68
dB
Current Limit
V
IN
= 7V, V
OUT
= 0V
140
mA
LT3010-5
V
IN
= 6V,
V
OUT
= 0.1V
q
60
mA
LT3010 (Note 2) V
IN
= 4V,
V
OUT
= 0.1V
q
60
mA
Input Reverse
V
IN
= 80V, V
OUT
= 0V
q
6
mA
Leakage Current
Reverse Output Current
LT3010-5
V
OUT
= 5V, V
IN
< 5V
10
20
µ
A
(Note 9)
LT3010 (Note 2) V
OUT
= 1.275V, V
IN
< 1.275V
8
15
µ
A
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3010 (adjustable version) is tested and specified 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 specification 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 specified 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 5
µ
A DC load on the output.
Note 5: Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specified output current. In dropout, the
output voltage will be equal to (V
IN
V
DROPOUT
).
Note 6: GND pin current is tested with V
IN
= V
OUT
(nominal) and a current
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 flows into the ADJ pin.
Note 8: SHDN pin current flows 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 flows into the OUT
pin and out the GND pin.
Note 10: The LT3010E is guaranteed to meet performance specifications
from 0
°
C to 125
°
C operating junction temperature. Specifications over
the 40
°
C to 125
°
C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
Note 11: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125
°
C when overtemperature protection is
active. Continuous operation above the specified maximum operating
junction temperature may impair device reliability.
TYPICAL PERFOR A CE CHARACTERISTICS
U
W
Typical Dropout Voltage
OUTPUT CURRENT (mA)
0
DROPOUT VOLTAGE (mV)
300
400
500
40
3010 G01
200
100
250
350
450
150
50
0
10
5
20
15
30 35
45
25
50
T
J
= 125
°
C
T
J
= 25
°
C
OUTPUT CURRENT (mA)
0
DROPOUT VOLTAGE (mV)
200
400
600
100
300
500
10
20
30
40
3010 G02
50
5
0
15
25
35
45
= TEST POINTS
T
J
125
°
C
T
J
25
°
C
TEMPERATURE (
°
C)
50
0
DROPOUT VOLTAGE (mV)
50
150
200
250
500
350
0
50
75
3010 G03
100
400
450
300
25
25
100
125
I
L
= 50mA
I
L
= 10mA
I
L
= 1mA
Guaranteed Dropout Voltage
Dropout Voltage
4
LT3010/LT3010-5
3010f
TYPICAL PERFOR A CE CHARACTERISTICS
U
W
Quiescent Current
LT3010-5 Output Voltage
LT3010 ADJ Pin Voltage
TEMPERATURE (
°
C)
50
ADJ PIN VOLTAGE (V)
1.290
25
3010 G06
1.275
1.265
25
0
50
1.260
1.255
1.295
1.285
1.280
1.270
75
100
125
I
L
= 1mA
LT3010-5 Quiescent Current
LT3010 Quiescent Current
LT3010-5 GND Pin Current
INPUT VOLTAGE (V)
0
QUIESCENT CURRENT (
µ
A)
30
40
50
8
3010 G08
20
10
25
35
45
15
5
0
2
1
4
3
6
7
9
5
10
T
J
= 25
°
C
R
L
=
V
SHDN
= V
IN
V
SHDN
= 0V
LT3010 GND Pin Current
GND Pin Current vs I
LOAD
SHDN Pin Threshold
INPUT VOLTAGE (V)
0
GND PIN CURRENT (mA)
1.2
1.6
2.0
8
3010 G10
0.8
0.4
1.0
1.4
1.8
0.6
0.2
0
2
1
4
3
6
7
9
5
10
T
J
= 25
°
C
*FOR V
OUT
= 1.275V
R
L
= 25.5
I
L
= 50mA*
R
L
= 51
I
L
= 25mA*
R
L
= 127
I
L
= 10mA*
R
L
= 1.27k I
L
= 1mA*
OUTPUT CURRENT (mA)
0
GND PIN CURRENT (mA)
1.2
1.6
2.0
40
3010 G11
0.8
0.4
1.0
1.4
1.8
0.6
0.2
0
10
5
20
15
30 35
45
25
50
V
IN
= V
OUT(NOMINAL)
+ 1V
T
J
= 25
°
C
TEMPERATURE (
°
C)
50
SHDN PIN THRESHOLD (V)
1.4
25
3010 G12
0.8
0.4
25
0
50
0.2
0
1.6
1.2
1.0
0.6
75
100
125
OFF-TO-ON
ON-TO-OFF
TEMPERATURE (
°
C)
50
QUIESCENT CURRENT (
µ
A)
35
25
3010 G04
20
10
25
0
50
5
0
40
30
25
15
75
100
125
V
SHDN
= V
IN
V
SHDN
= 0V
V
IN
> 6V
R
L
=
, I
L
= 0 (LT3010-5)
R
L
= 250k, I
L
= 5
µ
A (LT3010)
TEMPERATURE (
°
C)
50
OUTPUT VOLTAGE (V)
5.06
25
3010 G05
5.00
4.96
25
0
50
4.94
4.92
5.08
5.04
5.02
4.98
75
100
125
I
L
= 1mA
INPUT VOLTAGE (V)
0
QUIESCENT CURRENT (
µ
A)
120
160
200
8
3010 G07
80
40
100
140
180
60
20
0
2
1
4
3
6
7
9
5
10
T
J
= 25
°
C
R
L
=
V
SHDN
= V
IN
V
SHDN
= 0V
INPUT VOLTAGE (V)
0
GND PIN CURRENT (mA)
1.2
1.6
2.0
8
3010 G09
0.8
0.4
1.0
1.4
1.8
0.6
0.2
0
2
1
4
3
6
7
9
5
10
T
J
= 25
°
C
*FOR V
OUT
= 5V
R
L
= 100
I
L
= 50mA*
R
L
= 200
I
L
= 25mA*
R
L
= 500
I
L
= 10mA*
R
L
= 5k, I
L
= 1mA*
5
LT3010/LT3010-5
3010f
TYPICAL PERFOR A CE CHARACTERISTICS
U
W
SHDN Pin Current
ADJ Pin Bias Current
SHDN PIN VOLTAGE (V)
0
SHDN PIN CURRENT (
µ
A)
0.2
0.4
0.6
0.1
0.3
0.5
1
2
3
4
3010 G13
5
0.5
0
1.5
2.5
3.5
4.5
T
J
= 25
°
C
CURRENT FLOWS
OUT OF SHDN PIN
SHDN Pin Current
TEMPERATURE (
°
C)
50
SHDN PIN CURRENT (
µ
A)
0.7
25
3010 G14
0.4
0.2
25
0
50
0.1
0
0.8
0.6
0.5
0.3
75
100
125
V
SHDN
= 0V
CURRENT FLOWS
OUT OF SHDN PIN
TEMPERATURE (
°
C)
50
ADJ PIN BIAS CURRENT (nA)
70
25
3010 G15
40
20
25
0
50
10
0
80
60
50
30
75
100
125
Current Limit
Reverse Output Current
INPUT VOLTAGE (V)
0
CURRENT LIMIT (mA)
120
160
200
8
3010 G16
80
40
100
140
180
60
20
0
2
1
4
3
6
7
9
5
10
V
OUT
= 0V
T
J
= 25
°
C
Current Limit
TEMPERATURE (
°
C)
50
0
CURRENT LIMIT (mA)
20
60
80
100
200
140
0
50
75
3010 G17
40
160
180
120
25
25
100
125
V
IN
= 7V
V
OUT
= 0V
OUTPUT VOLTAGE (V)
0
REVERSE OUTPUT CURRENT (
µ
A)
60
80
100
8
3010 G18
40
20
50
70
90
30
10
0
2
1
4
3
6
7
9
5
10
LT3010
LT3010-5
T
J
= 25
°
C
V
IN
= 0V
CURRENT FLOWS
INTO OUTPUT PIN
V
OUT
= V
ADJ
(LT3010)
V
OUT
= V
SENSE
(LT3010-5)
ADJ
PIN CLAMP
(SEE APPLICATIONS
INFORMATION)
Input Ripple Rejection
Reverse Output Current
Input Ripple Rejection
TEMPERATURE (
°
C)
50
REVERSE OUTPUT CURRENT (
µ
A)
21
25
3010 G19
12
6
25
0
50
3
0
24
18
15
9
75
100
125
LT3010-5
LT3010
V
IN
= 0V
V
OUT
= V
ADJ
= 1.275V (LT3010)
V
OUT
= V
SENSE
= 5V (LT3010-5)
TEMPERATURE (
°
C)
50
60
RIPPLE REJECTION (dB)
62
66
68
70
80
74
0
50
75
3010 G20
64
76
78
72
25
25
100
125
V
IN
= 7V + 0.5V
P-P
RIPPLE AT f = 120Hz
I
L
= 50mA
V
OUT
= 1.275V
FREQUENCY (Hz)
10
40
RIPPLE REJECTION (dB)
50
60
70
80
100
1k
10k
100k
1M
3010 G21
30
20
10
0
90
100
V
IN
= 7V + 50mV
RMS
RIPPLE
I
L
= 50mA
C
OUT
= 10
µ
F
C
OUT
= 1
µ
F
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