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LT3012HFE#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
LT3012
1
3012fd
FEATURES
APPLICATIONS
DESCRIPTION
250mA, 4V to 80V
Low Dropout
Micropower Linear Regulator
The LT
®
3012 is a high voltage, micropower low dropout
linear regulator. The device is capable of supplying 250mA of
output current with a dropout voltage of 400mV. Designed
for use in battery-powered or high voltage systems, the low
quiescent current (40μA operating and 1μA in shutdown)
makes the LT3012 an ideal choice. Quiescent current is
also well controlled in dropout.
Other features of the LT3012 include the ability to operate
with very small output capacitors. The regulator is stable
with only 3.3μF on the output while most older devices
require between 10μF and 100μF for stability. Small ce-
ramic capacitors can be used without any need for 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 device is available with an adjustable output with a
1.24V reference voltage. The LT3012 regulator is available
in the 16-lead TSSOP and 12 pin low profi le (0.75mm)
(4mm × 3mm) DFN packages with an exposed pad for
enhanced thermal handling capability.
Dropout Voltage
n
Wide Input Voltage Range: 4V to 80V
n
Low Quiescent Current: 40μA
n
Low Dropout Voltage: 400mV
n
Output Current: 250mA
n
No Protection Diodes Needed
n
Adjustable Output from 1.24V to 60V
n
1μA Quiescent Current in Shutdown
n
Stable with 3.3μF Output Capacitor
n
Stable with Aluminum, Tantalum or Ceramic
Capacitors
n
Reverse-Battery Protection
n
No Reverse Current Flow from Output to Input
n
Thermal Limiting
n
Thermally Enhanced 16-Lead TSSOP and
12-Pin (4mm × 3mm) DFN Packages
n
Low Current High Voltage Regulators
n
Regulator for Battery-Powered Systems
n
Telecom Applications
n
Automotive Applications
5V Supply with Shutdown
TYPICAL APPLICATION
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
1μF
V
IN
5.4V TO
80V
3012 TA01
V
OUT
5V
250mA
V
SHDN
<0.3V
>2.0V
OUTPUT
OFF
ON
3.3μF
750k
249k
IN
LT3012
SHDN
OUT
ADJ
GND
OUTPUT CURRENT (mA)
0
250
300
400
350
200
3012 TA02
200
150
50 100 150 250
100
50
0
DROPOUT VOLTAGE (mV)
LT3012
2
3012fd
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3012EDE#PBF LT3012EDE#TRPBF 3012 12-Lead (4mm × 3mm) Plastic DFN –40°C to 125°C
LT3012EFE#PBF LT3012EFE#TRPBF 3012EFE 16-Lead Plastic TSSOP –40°C to 125°C
LT3012HFE#PBF LT3012HFE#TRPBF 3012HFE 16-Lead Plastic TSSOP –40°C to 140°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3012EDE LT3012EDE#TR 3012 12-Lead (4mm × 3mm) Plastic DFN –40°C to 125°C
LT3012EFE LT3012EFE#TR 3012EFE 16-Lead Plastic TSSOP –40°C to 125°C
LT3012HFE LT3012HFE#TR 3012HFE 16-Lead Plastic TSSOP –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:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
12
11
10
9
8
7
13
1
2
3
4
5
6
NC
IN
IN
NC
SHDN
NC
NC
OUT
OUT
ADJ
GND
NC
TOP VIEW
DE PACKAGE
12-LEAD (4mm × 3mm) PLASTIC DFN
T
JMAX
= 125°C, θ
JA
= 40°C/W, θ
JC
= 16°C/W
EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB
FE PACKAGE
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
17
GND
NC
OUT
OUT
ADJ
GND
NC
GND
GND
NC
IN
IN
NC
SHDN
NC
GND
T
JMAX
= 140°C, θ
JA
= 40°C/W, θ
JC
= 16°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
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
TSSOP Package .................................–65°C to 150°C
DFN Package ......................................–65°C to 125°C
Operating Junction Temperature Range
(Notes 3, 10, 11)
LT3012E ............................................. –40°C to 125°C
LT3012HFE .........................................–40°C to 140°C
Lead Temperature (FE16 Soldering, 10 sec) ......... 300°C
LT3012
3
3012fd
ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage I
LOAD
= 250mA
l
4 4.75 V
ADJ Pin Voltage (Notes 2, 3) V
IN
= 4V, I
LOAD
= 1mA
4.75V < V
IN
< 80V, 1mA < I
LOAD
< 250mA
l
1.225
1.2
1.24
1.24
1.255
1.28
V
V
Line Regulation ΔV
IN
= 4V to 80V, I
LOAD
= 1mA (Note 2)
l
0.1 5 mV
Load Regulation (Note 2) V
IN
= 4.75V, ΔI
LOAD
= 1mA to 250mA
V
IN
= 4.75V, ΔI
LOAD
= 1mA to 250mA
l
712
25
mV
mV
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 4, 5)
I
LOAD
= 10mA
I
LOAD
= 10mA
l
160 230
300
mV
mV
I
LOAD
= 50mA
I
LOAD
= 50mA
l
250 340
420
mV
mV
I
LOAD
= 250mA
I
LOAD
= 250mA
l
400 490
620
mV
mV
GND Pin Current
V
IN
= 4.75V (Notes 4, 6)
I
LOAD
= 0mA
I
LOAD
= 100mA
I
LOAD
= 250mA
l
l
40
3
10
100
18
μA
mA
mA
Output Voltage Noise C
OUT
= 10μF, I
LOAD
= 250mA, BW = 10Hz to 100kHz 100 μV
RMS
ADJ Pin Bias Current (Note 7) 30 100 nA
Shutdown Threshold V
OUT
= Off to On
V
OUT
= On to Off
l
l
0.3
1.3
0.8
2V
V
SHDN Pin Current (Note 8) V
SHDN
= 0V
V
SHDN
= 6V
0.3
0.1
2
1
μA
μA
Quiescent Current in Shutdown V
IN
= 6V, V
SHDN
= 0V 1 5 μA
Ripple Rejection V
IN
= 7V(Avg), V
RIPPLE
= 0.5V
P-P,
f
RIPPLE
= 120Hz, I
LOAD
= 250mA 65 75 dB
Current Limit V
IN
= 7V, V
OUT
= 0V
V
IN
= 4.75V, ΔV
OUT
= –0.1V (Note 2)
l
250
400 mA
mA
Reverse Output Current (Note 9) V
OUT
= 1.24V, V
IN
< 1.24V (Note 2) 12 25 μA
The l
denotes the specifi cations which apply over the –40°C to 125°C operating temperature range, otherwise specifi cations are at T
J
= 25°C.
(LT3012E)
ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage I
LOAD
= 200mA
l
4 4.75 V
ADJ Pin Voltage (Notes 2, 3) V
IN
= 4V, I
LOAD
= 1mA
4.75V < V
IN
< 80V, 1mA < I
LOAD
< 200mA
l
1.225
1.2
1.24
1.24
1.255
1.28
V
V
Line Regulation ΔV
IN
= 4V to 80V, I
LOAD
= 1mA (Note 2)
l
0.1 5 mV
Load Regulation (Note 2) V
IN
= 4.75V, ΔI
LOAD
= 1mA to 200mA
V
IN
= 4.75V, ΔI
LOAD
= 1mA to 200mA
l
612
30
mV
mV
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 4, 5)
I
LOAD
= 10mA
I
LOAD
= 10mA
l
160 230
320
mV
mV
I
LOAD
= 50mA
I
LOAD
= 50mA
l
250 340
450
mV
mV
I
LOAD
= 200mA
I
LOAD
= 200mA
l
360 490
630
mV
mV
GND Pin Current
V
IN
= 4.75V (Notes 4, 6)
I
LOAD
= 0mA
I
LOAD
= 100mA
I
LOAD
= 200mA
l
l
40
3
7
110
18
μA
mA
mA
The l
denotes the specifi cations which apply over the –40°C to 140°C operating temperature range, otherwise specifi cations are at T
J
= 25°C.
(LT3012H)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LT3012HFE#PBF

Mfr. #:
Buy LT3012HFE#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
LDO Voltage Regulators 80Vin, 250mA. LDO in TSSOP
Lifecycle:
New from this manufacturer.
Delivery:
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