LTC3445EUF#PBF Buck Regulator Plus LDO by Analog Devices

Status: Production
Series: LTC3445
RoHS: Compliant
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The LTC3445 contains a high efficiency monolithic synchronous current mode buck regulator, two LDO regulators, a PowerPath™ controller and an I2C™ interface.The buck regulator has a 6-bit programmable output range of 0.85V to 1.55V. Also, the buck regulator uses either a constant (1.5MHz) or a spread spectrum switching frequency. Using the spread spectrum option allows for a lower noise regulated output as well as low noise at the input. In addition, the regulated output voltage slew rate is programmable via the I2C interface.The LTC3445 contains two LDO voltage regulators. The regulator output voltages are externally resistor programmable. Each LDO is capable of delivering up to 50mA.The LTC3445 contains control circuitry (PowerPath) for automatic back-up battery selection. VBACKUP is typically a coin cell.Typical supply current during operation is only 360µA and drops to 27µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3445 ideal for single Li-Ion battery-powered

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Prices starting from US$4.00

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Features

Buck Regulator
High Efficiency: Up to 93%
600mA Output Current (VCC1 = 3V, VOUT = 1.3V)
Programmable Output Voltage: 0.85V to 1.55V
2.5V to 5.5V Input Voltage Range
1.5MHz Constant Frequency or Spread Spectrum Option
Soft-StartLDOs
Two LDO Regulators: 0.3V Dropout at 50mAPowerPath Controller
Dynamically Regulates VCC BATTI2C
Standard (100kHz) or Fast Mode (400kHz)
24-Lead (4mm × 4mm) QFN Package

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Alternative Descriptions

PMIC | TME
Buck Regulator with LDO 2.5V to 5.5V 24-Pin QFN EP Tube | Richardson RFPD


LTC3445EUF#PBF Semiconductors - ICs by Linear Technology

VOLTAGE REG BUCK 1.5MHZ 2 LDO QFN-24

Status: Unknown
Series: -
RoHS: Unknown
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Specifications

Supply Voltage 5.5V
No. of Step-Down DC - DC Converters 1
No. of LDO Regulators 2
No. of Regulated Outputs 3
Digital IC Case QFN
No. of Pins 24Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
No. of Outputs 3Outputs
Operating Temperature Range -40°C to +85°C
Output Current 600mA
Primary Input Voltage 5.5V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3445EUF#PBF?

Additional datasheets, footprints and schematics for LTC3445EUF#PBF are listed on our Part Details page. You can also find images and similar parts to LTC3445EUF#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC3445EUF#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC3445EUF#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC3445EUF#PBF fall under?

The LTC3445EUF#PBF is listed under Buck Regulator Plus LDO.

Can I view similar or alternative parts?

You can view similar parts to LTC3445EUF#PBF when available in the Buck Regulator Plus LDO 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 LTC3445EUF#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LTC3445EUF#PBF RoHS compliant?

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

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Authorised distributors including TME and Richardson RFPD have stock available or on a lead time for LTC3445EUF#PBF.

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