lt3014bes5 Linear Technology Corporation, lt3014bes5 Datasheet

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lt3014bes5

Manufacturer Part Number
lt3014bes5
Description
20ma, 3v To 80v Low Dropout Micropower Linear Regulator
Manufacturer
Linear Technology Corporation
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
LT3014BES5
Manufacturer:
LT
Quantity:
10 000
Part Number:
lt3014bes5#TRMPBF
Manufacturer:
LINEAR
Quantity:
10 000
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
Wide Input Voltage Range: 3V to 80V
Low Quiescent Current: 7µA
Low Dropout Voltage: 350mV
Output Current: 20mA
LT3014BHV Survives 100V Transients (2ms)
No Protection Diodes Needed
Adjustable Output from 1.22V to 60V
Stable with 0.47µF Output Capacitor
Stable with Aluminum, Tantalum or Ceramic
Capacitors
Reverse-Battery Protection
No Reverse Current Flow from Output
Thermal Limiting
Available in 5-Lead ThinSOT
8-Lead DFN Packages
Low Current High Voltage Regulators
Regulator for Battery-Powered Systems
Telecom Applications
Automotive Applications
V
5.4V TO
80V
IN
1µF
U
5V Supply
IN
LT3014B
GND
TM
OUT
ADJ
U
and
3.92M
1.27M
3014 TA01
V
5V
20mA
0.47µF
OUT
DESCRIPTIO
The LT
linear regulator. The device is capable of supplying 20mA
of output current with a dropout voltage of 350mV. De-
signed for use in battery-powered or high voltage sys-
tems, the low quiescent current (7µA operating) makes
the LT3014B an ideal choice. Quiescent current is also well
controlled in dropout.
Other features of the LT3014B include the ability to oper-
ate with very small output capacitors. The regulators are
stable with only 0.47µF on the output while most older
devices require between 10µF and 100µF 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 as an adjustable device with a 1.22V
reference voltage. The LT3014B regulator is available in
the 5-lead ThinSOT and 8-lead DFN packages.
a trademark of Linear Technology Corporation. All other trademarks are the property of
their respective owners. Protected by U.S. Patents including 6118263, 6144250.
Low Dropout Micropower
, LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is
®
3014B is a high voltage, micropower low dropout
400
350
300
250
200
150
100
50
0
0
2
4
U
OUTPUT CURRENT (mA)
20mA, 3V to 80V
Dropout Voltage
Linear Regulator
6
8
10 12
14 16 18 20
3014 TA02
LT3014B
3014bf
1

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lt3014bes5 Summary of contents

Page 1

... The LT3014B regulator is available in the 5-lead ThinSOT and 8-lead DFN packages. , LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6118263, 6144250. 400 ...

Page 2

... Operating Junction Temperature Range (Notes 3, 9, 10) ........................... –40°C to 125°C Lead Temperature, SOT-23 (Soldering, 10 sec) ..................................... 300° ORDER PART NUMBER OUT 1 ADJ 2 LT3014BES5 NC 3 LT3014BHVES5 GND 4 S5 PART MARKING 8-LEAD (3mm × 3mm) PLASTIC DFN EXPOSED PAD IS GND (PIN 9) MUST BE SOLDERED TO PCB LTCHK T ...

Page 3

ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T PARAMETER CONDITIONS Output Voltage Noise C OUT ADJ Pin Bias Current (Note 7) Ripple Rejection V IN Current Limit V IN ...

Page 4

LT3014B W U TYPICAL PERFOR A CE CHARACTERISTICS Quiescent Current ∞ – 50 – 100 ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Reverse Output Current 1.22V OUT ADJ – 50 – 100 125 ...

Page 6

LT3014B CTIO S (SOT-23 Package/DD Package) IN (Pin 1/Pin 8): Input. Power is supplied to the device through the IN pin. A bypass capacitor is required on this pin if the device is more than ...

Page 7

U U APPLICATIO S I FOR ATIO Output Capacitance and Transient Response The LT3014B is designed to be stable with a wide range of output capacitors. The ESR of the output capacitor affects stability, most notably with small capacitors. A ...

Page 8

LT3014B U U APPLICATIO S I FOR ATIO The LT3014B regulator has internal thermal limiting de- signed to protect the device during overload conditions. For continuous normal conditions the maximum junction temperature rating of 125°C must not be exceeded. It ...

Page 9

U U APPLICATIO S I FOR ATIO P2(48V in, 20mA load) = 20mA • (48V – 5V) + (0.55mA • 48V) = 0.89W P3(72V in, 5mA load) = 5mA • (72V – 5V) + (100µA • 72V) = 0.34W P4(72V ...

Page 10

LT3014B U TYPICAL APPLICATIO 12V 1µF (LATER 42V 48V (72V TRANSIENT) 1µF Constant Brightness for Indicator LED over Wide Input Voltage Range 10 LT3014B Automotive Application IN OUT NO PROTECTION LT3014B DIODE NEEDED! R1 ...

Page 11

... RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 12

... V = 0.15V 120µA, I <1µ 1.22V 0.30V 40µA, I <1µ 1.22V 0.30V 60µA, I <1µ 1.22V 0.30V 40µA, I <1µ 1.22V 0.30V 60µA, I <1µ 0206 1K • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2006 3014bf ...

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