New High-Temperature 200mA LDOs Withstand 80V Input up to 140°C

News Release  www.linear.com
New High-Temperature 200mA LDOs Withstand 80V Input up to 140°C
MILPITAS, CA – April 17, 2007 – Linear Technology Corporation announces new
high-temperature versions of the LT3012 and LT3013, micropower LDOs with input voltage
capability up to 80V. These H grade devices are offered in the TSSOP package and operate up to
+140°C, featuring low dropout voltage of only 360mV while delivering up to 200mA of output
current. The wide VIN capability of 3.3V to 80V and adjustable output from 1.24V up to 60V
makes them ideal for automotive, 48V telecom backup supplies and industrial control
applications. Additionally, their very low quiescent current of 40uA (operating) and 1uA
(shutdown) make them an excellent choice for battery-powered memory “keep alive” systems
that require extended run times. The LT3013’s Powergood flag feature is programmable and
indicates output regulation.
For high voltage applications that require large input-to-output differentials, the LT3012
and LT3013 offer a very compact and thermally effective solution. The thermally enhanced
TSSOP package provides thermal resistances comparable to much larger conventional packages.
The LT3012 and LT3013 operate with very small, low cost ceramic output capacitors.
They are stable with only a 3.3uF output capacitor, compared to older regulator devices of
comparable output current and high voltage requiring 10uF to more than 100uF. These tiny
external capacitors can be used without any necessary series resistance as is common with many
other regulators. Internal protection circuitry includes reverse-battery protection, current limiting,
thermal limiting, and reverse-current protection.
LT3012HFE and LT3013HFE pricing in the TSSOP package is $2.73 and $3.01
respectively.
New High-Temperature 200mA LDOs Withstand 80V Input up to 140°C
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Photo Caption: +140°C Capable 200mA 80V LDOs
Summary of Features: LT3012/H and LT3013/H
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VIN Range: 4V to 80V
Adjustable Output from 1.24V to 60V
Quiescent Current: LT3012 = 40uA (Typ), LT3013 = 65uA (Typ), ISD < 1uA
Low Dropout Voltage: 360mV Typical
Output Current: 200mA
Temperature Range: -40°C to +140°C
Programmable Powergood Flag (LT3013 only)
No Protection Diodes Needed
Stable with Aluminum, Tantalum or Ceramic Capacitors
Reverse-Battery Protection
No Reverse Current Flow From Output
Thermally Enhanced 16-Lead TSSOP Package
About Linear Technology
Linear Technology Corporation, a manufacturer of high performance linear integrated circuits,
was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major
public companies in 2000. Linear Technology products include high performance amplifiers,
comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery
chargers, data converters, communications interface circuits, RF signal conditioning circuits, and
many other analog functions. Applications for Linear Technology’s high performance circuits
include telecommunications, cellular telephones, networking products such as optical switches,
notebook and desktop computers, computer peripherals, video/multimedia, industrial
instrumentation, security monitoring devices, high-end consumer products such as digital
cameras and MP3 players, complex medical devices, automotive electronics, factory automation,
process control, and military and space systems. For more information, visit www.linear.com
LT, LTC, LTM, Burst Mode and
are registered trademarks of Linear Technology Corp.
Press Contacts:
John Hamburger, Director Marketing Communications
[email protected]
Tel 408-432-1900 ext 2419
Doug Dickinson, Media Relations Manager
[email protected]
408-432-1900 ext 2233