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Semtech

Controls & Controllers

Buck Converter offer 15 digitally controlled output voltages.

Supplied in 1.5 x 1.5 x 0.6 mm MLPQ package and requiring 3 external components, SC195 synchronous step-down (buck) regulator operates from 2.9-5.5 V input and provides 15 pin-programmable output voltages from 0.8-3.3 V. Multiple protection features are standard, along with integrated feedback network and internal loop compensation. In addition to 500 mA continuous output current rating, product...

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I/O Expanders are suited for battery-powered devices.
Controls & Controllers

I/O Expanders are suited for battery-powered devices.

Low-voltage, level-shifting I/O expanders SX1508 and SX1509 have 8- and 16-channels, respectively, and operate from 1.5-3.6 V input. Dual-voltage I/O rails provide level-shifting down to 1.2 V and I/O interface with 2 logic levels. Each bidirectional 15 mA I/O includes 256-step LED driver supporting lighting effects such as RGB color mixing. Integrated keypad engine supports key matrix scanning...

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Electronic Components & Devices

Low-Capacitance TVS Array protects high-speed data interfaces.

Employing solid-state silicon-avalanche technology, RClamp2502L protects sensitive components connected to data and transmission lines from overvoltage caused by ESD, CDE (cable discharge events), and lightning. This array of surge rated diodes with internal TVS diode protects up to 2 I/O lines and features capacitance of less than 5 pF line-to-line. Operating voltage is 2.5 V, and transient...

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Programmable RF Transceiver features 135 dBm link budget.
Communication Systems & Equipment

Programmable RF Transceiver features 135 dBm link budget.

Intended for applications using ISM frequency band, SX1231 operates from 290-1,020 MHz and can be programmed between narrow- and wide-band communications modes without modifying external components. Its 16 mA receive current and 33 mA transmit current extend battery life, and integrated packet engine offloads RF packetization from MCU and provides CRC error checking, AES-128 encryption, and...

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Charge Pump Driver enables PWM dimming for LED backlighting.
Construction Equipment and Supplies

Charge Pump Driver enables PWM dimming for LED backlighting.

Model SC652 supports up to 5 LEDs with 1 PWM dimming input, while SC656 supports up to 7 LEDs with 1 or 2 independent PWM dimming inputs. Both integrate digital low-pass filters that convert PWM dimming signal's duty-cycle into DC current for LCD backlighting with white LEDs. Drivers PWM inputs accept 200 Hz to 50 kHz PWM signals with logic level of 1.4 V and above. Input supply voltage range is...

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Touchscreen Controller features
Agricultural & Farming Products

Touchscreen Controller features

Designed for resistive touchscreens on portable devices, 4-wire Model SX8650 consumes 23 -µA at 8 kSPS rate, supports 400 kHz fast-mode I-²C serial bus data protocol, and operates from 1.65-3.7 V. Unit features 12-bit ADC for coordinates and touch pressure measurement and can achieve equivalent throughput output rate of 50 kSPS. Available in 3 x 3 mm 12-DFN and 1.46 x 1.96 mm 12-WLCSP packages,...

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Transient Voltage Suppression Devices lend ESD protection to smartphones.
Electronic Components & Devices

Transient Voltage Suppression Devices lend ESD protection to smartphones.

Manufactured on sub 65 nm technology and supplied in 1.0 x 0.6 x 0.4 mm package, uClamp2501T and uClamp2511T are 2.5 V single-line MicroClamp-® transient voltage suppression (TVS) devices targeted at multimedia smart phones. They feature 10 nA leakage current and 2.5 V operating voltage. While unidirectional uClamp2501T is rated at 30pF, bidirectional uClamp2511T offers capacitance of 10pF max....

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Synchronous Buck Controllers operate from 3-28 V.
Agricultural & Farming Products

Synchronous Buck Controllers operate from 3-28 V.

Housed in 3 x 3 mm, halogen-free, RoHS-compliant packaging, Model SC419 is intended for operation in systems that have dual supplies, while Model SC418 integrates LDO regulator to enable operation from single supply up to 28 V. Units feature ultrasonic power save with programmable floor frequency, and SmartDrive(TM) technology, which minimizes EMI and eliminates need for snubbers or gate drive...

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Charge Pump Drivers enhance LED backlighting in handhelds.
Construction Equipment and Supplies

Charge Pump Drivers enhance LED backlighting in handhelds.

Supplied in 2 x 2 x 0.6 mm plastic package, models SC654, SC657, and SC658 drive 6, 5, and 4 LEDs, respectively. Integrated mAhXLife(TM) charge pump monitors each LED's forward voltage and automatically selects 1x, 1.5x, or 2x mode to optimize efficiency. Also included, low-dropout current sink regulators provide LED current matching of 0.5% typ. LED current may be adjusted from 0-25 mA in 29...

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