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Step-Down Regulator APM81815 3.3V 1.1A - Pololu 5266
ID: 1202997
5902186335523
zł25.02
Tax included
zł20.34 tax excl.
Step-down voltage regulator module based on the APM81815 providing a fixed 3.3 V output at up to 1.1 A with an input voltage range of 5 - 72 V. Pololu 5266
Description
The Pololu 5266 is based on the APM81815 synchronous buck regulator and enables step-down conversion from an input voltage range of 5 - 72 V to a stable 3.3 V output. The design uses an Allegro MicroSystems IC intended for industrial and automotive applications, including systems powered from 12 V, 24 V, and 48 V supply rails.
The regulator operates at an internally set switching frequency of 2.15 MHz and integrates key power-stage components, simplifying PCB layout and reducing EMI emissions. The module supports continuous output current up to 1.1 A. Integrated protection features include undervoltage lockout (UVLO), cycle-by-cycle current limiting, short-circuit protection, output overvoltage and undervoltage protection, and thermal shutdown. The PGOOD open-drain output allows monitoring of the output voltage status.
Features
- Integrated circuit: APM81815
- Converter type: Synchronous step-down (buck)
- Input voltage: 5 - 72 V
- Output voltage: 3.3 V
- Maximum continuous output current: 1.1 A
- Output type: Fixed 3.3 V
- Switching frequency: 2.15 MHz
- Maximum quiescent current: 3 mA
- No reverse voltage protection
- Cycle-by-cycle overcurrent protection
- Output short-circuit protection
- Output overvoltage and undervoltage protection
- Thermal shutdown protection
- PGOOD open-drain status output
- Dimensions: 10.16 x 19.05 x 3.3 mm
- Weight: 1.0 g
1202997
Data sheet
- Output voltage
- 3,3 V
- Output current
- 1,1 A
- Converter type
- Step-down
- Supply voltage min
- 5 V
- Supply voltages max
- 72 V
- APM81815 datasheet (1,48 MB)
- Dimension diagram of the APM81815 Step-Down Voltage Regulator Carrier (292,29 kB)
- 3D model of the APM81815 Step-Down Voltage Regulator Carrier (3,3 MB)
- Drill guide for the APM81815 Step-Down Voltage Regulator Carrier (11,95 kB)
- Schematic - jpg (40,85 kB)
- Typical dropout voltage 3,3V - jpg (61,29 kB)
- Typical efficiency - jpg (89,50 kB)
- Quiescent current - jpg (108,39 kB)
- Maximum continuous output current - jpg (98,12 kB)
Manufacturer
- BTC Korporacja sp. z o. o.
- Ludwinowo Zegrzyńskie 52G
- 05-140 Ludwinowo Zegrzyńskie
- Poland
- [email protected]
- 22 767 36 20
Responsible person
- BTC Korporacja sp. z o. o.
- Ludwinowo Zegrzyńskie 52G
- 05-140 Ludwinowo Zegrzyńskie
- Poland
- [email protected]
- 22 767 36 20
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Step-down voltage regulator module based on the APM81815 providing a fixed 3.3 V output at up to 1.1 A with an input voltage range of 5 - 72 V. Pololu 5266