LT3571IUD#PBF Internal Power Switch Boost Regulators by Analog Devices

Status: Production
Series: LT3571
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT3571 is a current mode step-up DC/DC converter designed to bias avalanche photodiodes (APDs) in optical receivers with an output voltage up to 75V. The LT3571 features a high side fixed voltage drop APD current monitor with better than 10% relative accuracy over the entire temperature range. The integrated power switch, Schottky diode and APD current monitor allow a small solution footprint and low solution cost. It combines a traditional voltage loop and a unique current loop to operate as a constant-current source or constant-voltage source. The inductor-based topology ensures an input free from switching noise. The integrated high side current monitor produces a current proportional to the APD current with better than 10% relative accuracy over four decades of dynamic range in the input range of 250nA to 2.5mA. This current can be used as a reference to provide a digitally programmed output voltage via the CTRL pin. The LT3571 is available in the tiny footprint (3mm × 3mm) 16-lead QFN package.

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Prices starting from US$4.53

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Newark Electronics
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element14
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Richardson RFPD
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Farnell
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Features

High Output Voltage: Up to 75V
Integrated Schottky Diode
75V, 350mA Internal Switch
High Side Fixed Voltage Drop APD Current Monitor
Adjustable Frequency: 250kHz to 2MHz
Frequency Synchronization
Wide VIN Range: 2.7V to 20V
Constant-Voltage and Constant-Current Regulation
Programmable Current Limit Protection
Surface Mount Components
Low Shutdown Current <1μA
Internal Soft-Start
Internal Compensation
CTRL Pin Allows Output Adjustment with No Polarity Inversion
3mm × 3mm 16-Lead QFN Package

Last 6 months Inventory & Pricing History


Alternative Descriptions

Dc/Dc Conv, Boost, 2Mhz, 125Deg C | Newark Electronics
DC/DC CONV, BOOST, 2MHZ, 125DEG C | element14
Conv DC-DC 2.7V to 20V Step Up Single-Out 2.7V to 75V 0.47A 16-Pin QFN EP Tube | Richardson RFPD


LT3571IUD#PBF Semiconductors - ICs by Linear Technology

DC/DC 75V 0.45A 2MHZ 16QFN

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Topology Boost (Step Up)
Input Voltage Min 2.7V
Input Voltage Max 20V
No. of Outputs 1Outputs
DC / DC Converter IC Case QFN
No. of Pins 16Pins
Output Current 370mA
Output Voltage Min -
Output Voltage Max 75V
Switching Frequency 2.3MHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Primary Input Voltage 20V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3571IUD#PBF?

Additional datasheets, footprints and schematics for LT3571IUD#PBF are listed on our Part Details page. You can also find images and similar parts to LT3571IUD#PBF on this page.

What pricing and inventory information can I view?

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What category does LT3571IUD#PBF fall under?

The LT3571IUD#PBF is listed under Internal Power Switch Boost Regulators.

Can I view similar or alternative parts?

You can view similar parts to LT3571IUD#PBF when available in the Internal Power Switch Boost Regulators range under the specifications section at the bottom of the details page.

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Is the LT3571IUD#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LT3571IUD#PBF have stock available?

Authorised distributors including Newark Electronics, element14, Richardson RFPD and Farnell have stock available or on a lead time for LT3571IUD#PBF.

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