LT3571EUD#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.

Where to Buy

Prices starting from US$3.09

Distributor Stock
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Analog Devices
from US$3.09
59
in stock
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Newark Electronics
from US$4.47
24
in stock
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Farnell
from US$3.83
24
in stock
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Richardson RFPD
from US$4.10
0
in stock
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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

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


LT3571EUD#PBF Semiconductors - ICs by Linear Technology

IC DC/DC CONV 75V 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)
Base Number 3571
Frequency 2MHz
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Output Voltage 75V
Primary Input Voltage 20V
Supply Voltage Min 2.7V
Switch Output Current Isw Max 350mA
Termination Type Surface Mount Device
Voltage Regulator Type Step Up (Boost)

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3571EUD#PBF?

Additional datasheets, footprints and schematics for LT3571EUD#PBF are listed on our Part Details page. You can also find images and similar parts to LT3571EUD#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LT3571EUD#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LT3571EUD#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LT3571EUD#PBF fall under?

The LT3571EUD#PBF is listed under Internal Power Switch Boost Regulators.

Can I view similar or alternative parts?

You can view similar parts to LT3571EUD#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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Submit any questions directly to the customer support team of the distributor listing the product. For the LT3571EUD#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LT3571EUD#PBF RoHS compliant?

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

Which authorised distributors for LT3571EUD#PBF have stock available?

Authorised distributors including Analog Devices, Newark Electronics, Farnell and Richardson RFPD have stock available or on a lead time for LT3571EUD#PBF.

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