Semtech Introduces Industry's Smallest Dual 300mA LDO Linear Regulators

CAMARILLO, Calif.—(BUSINESS WIRE)—July 17, 2007— Semtech Corp. (Nasdaq: SMTC), a leading supplier of analog and mixed-signal semiconductors for communications, portable devices, computers, and industrial equipment, today announced the SC560, a family of ultra small, dual-output low dropout (LDO) linear regulators for Lithium-ion battery-powered designs such as mobile phones.

The SC560 devices measure 1.5 x 1.5 x 0.6mm (MLPQ-UT-8) and feature a dropout of only 200mV maximum at a current of 200mA per output. The SC560 devices are optimized for battery-powered applications with a very low 100uA quiescent current (both outputs enabled), and a 0.1uA shutdown current. The input voltage range for all devices is 2.5V to 5.5V.

There are eight devices in the SC560 family, each distinguished by their output voltages and pin options. Three devices, the SC560A, B and C, have adjustable output voltages on both LDOs, ranging from 1.2V to 3.3V. The SC560A also features a low-noise bypass, the SC560B offers a second LDO enable pin and the SC560C comes with a power good pin with 200ms delay.

The five other parts (SC560D, E, F, G, H) offer combinations of fixed voltage outputs for specific applications, ranging from 1.5V to 3.3V. Each of these devices is fully featured with individual enable capabilities for each LDO, a low noise bypass and power good output with 200ms delay that can be used for system reset. Please consult the factory for other voltage combinations.

The devices also provide protection circuitry such as current limiting, under-voltage lockout, and thermal protection.

"The SC560 gives designers all that they expect in a state-of-the-art LDO regulator while requiring only 40% of the board space of competitive alternatives," said Karl Volk, Semtech Marketing Director, Handheld Power. "With dual 300mA output capability, low dropout, low noise, two enable pins, a PGOOD timer for microprocessor power-on-reset, and tiny size, the SC560 matches or exceeds the requirements for most mobile applications."

Also new from Semtech are two versions of the SC1458 dual output LDO linear regulators, which come in 3 x 3 mm MLPD-W6 packages, but boast the same features as the SC560 devices. The SC1458A has fixed outputs of 2.8V and 1.8V, and the SC1458B has fixed outputs of 2.85V and 2.85V.

Key Features of the SC560

-- Tiny 1.5 x 1.5mm (0.6mm max. height) MLPQ package

-- Input voltage range: 2.5V - 5.5V

-- Output voltage ranges for SC560 A, B & C: 1.2V to 3.3V

-- Fixed voltage range devices: SC560D - 2.8V, 1.8V; SC560E - 2.85V, 2.85V; SC560F - 2.5V, 1.8V; SC560G - 2.8V, 1.5V; SC560H - 3.3V, 3.3V

-- Output current: 300mA max. per LDO

-- Independent enable for OUTB

-- PGOOD with 200ms power-on-reset timer

-- Low 50uVrms Noise, High 65dB PSRR

-- 1uF ceramic capacitors on the outputs

Pricing and Availability

The SC560 products (order code: SC560xULTRT, with x equal to the device version A, B, C, D, E, F, G, H) are available immediately in production quantities and are priced at $0.40 each in 1,000-piece lots. Semtech offers comprehensive design assistance, including field- and factory-based support. Data sheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available by contacting salesinfo@semtech.com.

About Semtech

Semtech Corporation is a leading supplier of high-quality analog and mixed-signal semiconductor products. The company is dedicated to providing customers with proprietary solutions and breakthrough technology in power management, protection, advanced communications, human interface, test & measurement, and wireless connectivity products. Publicly traded since 1967, Semtech is listed on the NASDAQ National Market under the symbol SMTC. For more information, contact Semtech Corp. at 200 Flynn Road, Camarillo, CA 93012-8790; phone (805) 498-2111; email to info@semtech.com; or visit its web site at www.semtech.com.

Semtech and the Semtech logo are marks of Semtech Corporation.

Contact:

Semtech Corporation
Terry Sears, 805-480-2052
Email Contact




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