Overview
These step-up/step-down regulators take an input voltage from 3 V to 30 V and increase or decrease it as necessary to produce a fixed 5 V, 6 V, 9 V, 12 V, or 24 V output, depending on the version. They are switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) with a single-ended primary-inductor converter (SEPIC) topology, and they have a typical efficiency between 80% and 90%. The available output current is a function of the input voltage, output voltage, and efficiency, but it will be around 2 A when the input voltage is close to the output voltage.
The no-load quiescent current will typically be around 1 mA for most combinations of input and output voltages, though the combination of a very high output voltage and a very low input voltage (e.g. when boosting from 3 V in to 30 V out) can result in quiescent currents on the order of a few dozen milliamps.
The ENABLE pin can be used to put the board in a low-power state that reduces the quiescent current to between 10 and 20 µA per volt on VIN (e.g. approximately 30 µA with 3 V in and 500 µA with 30 V in).
This regulator has built-in reverse-voltage protection, over-current protection, thermal shutdown (which typically activates at 165°C), and an under-voltage lockout that causes the regulator to turn off when the input voltage is below 2.5 V (typical).
Specification
- Input voltage: 2.9 V to 32 V
- Fixed 5 V, 6 V, 9 V, 12 V, or 24 V output with 4% accuracy
- Typical maximum output current: 2 A (when input voltage is close to the output voltage; the Typical Efficiency and Output Current section below shows how the achievable output current depends on input and output voltages)
- Integrated reverse-voltage protection (up to 30 V), over-current protection, over-temperature shutoff, and under-voltage lockout
- Typical efficiency of 80% to 90%, depending on input voltage, output voltage, and load
- Four 0.086" mounting holes for #2 or M2 screws
- Compact size: 1.7" × 0.825" × 0.38" (43 × 21 × 10 mm)
- Smaller holes for 0.1" header pins and larger holes for terminal blocks offer several options for connecting to the board
Schauen Sie sich bitte den Reiter 'Dokumente' für weitere Informationen an.
Package List
1xPololu 24V Step-Up/Step-Down Voltage Regulator S18V20F24
