5V 500mA step-down regulator D24V5F5
Pololu · MPN 2843 · agent-readable version
$8.95indicative · 2026-08-18
Captured from Pololu's own structured data on the date shown — not a quote. Availability is deliberately not claimed.
| Pololu | $8.95 · 2026-08-18 | product page ↗ |
Specifications — every value carries its receipt
Electrical
| No-load quiescent current, typ | 200 μA | vendor page“% 500 kHz switching frequency (when not in power-save mode) 200 μA typical no-load quiescent current Over-current and short-ci” |
| Over-current / thermal protection | yes | vendor page“ight versions of the D24V5Fx family. The regulators feature short-circuit/over-current protection, and thermal shutdown helps prevent” |
| Reverse-voltage protection | no | vendor page“shutdown helps prevent damage from overheating. The boards do not have reverse-voltage protection. If you need more output current, consider the very similar” |
| Topology | buck (step-down) | vendor page“voltage regulator in TO-220 package. The D24V5Fx family of buck (step-down) voltage regulators generates lower output voltages from inp” |
| VIN applied range, family (before dropout limit) | 3 to 36 V | vendor page“near regulator in a TO-220 package. Features Input voltage: 3 V to 36 V for output voltages of 1.8 V and 2.5 V [ output voltage + d” |
| SHDN low threshold (under) | 0.4 V | vendor page“utput voltage (VOUT). The SHDN pin can be driven low (under 0.4 V) to turn off the output and put the board into a low-power” |
| SHDN pull-up resistor to VIN | 100 kΩ | vendor page“output and put the board into a low-power state. There is a 100 kΩ pull-up resistor between the SHDN pin and VIN, so if you wa” |
| Draw while SHDN held low @ 36 V in (approx) | 360 μA | vendor page“tional to the input voltage. (At 36 V in it will draw about 360 μA.) The input voltage, VIN, powers the regulator. Voltages be” |
| Rec. input capacitor for >20 V inputs (min) | 33 μF | vendor page“ads or supply has high inductance, we recommend soldering a 33 μF or larger electrolytic capacitor close to the regulator bet” |
| Rec. input capacitor voltage rating (min) | 50 V | vendor page“een VIN and GND. The capacitor should be rated for at least 50 V. More information about LC spikes can be found in our appli” |
Performance
| Switching frequency | 500 kHz | vendor page“mum output current: 500 mA Typical efficiency of 80% to 93% 500 kHz switching frequency (when not in power-save mode) 200 μA ty” |
| Typical efficiency | 80 to 93 % | vendor page“DC-to-DC converters) and have a typical efficiency between 80% to 93%, which is much more efficient than linear voltage regulator” |
| Output voltage accuracy | 4 % | vendor page“12 V, or 15 V output (depending on regulator version) with 4% accuracy Maximum output current: 500 mA Typical efficiency” |
| Power-save mode at light loads | yes | vendor page“input and output voltage is large. These regulators have a power-save mode that activates at light loads and a low quiescent (no load)” |
Interface
| Shutdown (SHDN) pin | yes | vendor page“ections The buck regulator has four connections: shutdown ( SHDN ), input voltage (VIN), ground (GND), and output voltage (V” |
| Connections | shutdown ( SHDN ), input voltage (VIN), ground (GND), and output voltage (VOUT) | vendor page“ulator Connections The buck regulator has four connections: shutdown ( SHDN ), input voltage (VIN), ground (GND), and output voltage (VOUT). The SHDN pin can be driven low (under 0.4 V) to turn off t” |
Mechanical
| Board size | 13 mm x 10 mm x 3 mm | vendor page“n, over-temperature shutoff Small size: 0.5″ x 0.4″ x 0.1″ (13 mm x 10 mm x 3 mm) Using the regulator Connections The buck regulator has fou” |
| Pin spacing | 0.1 ″ | vendor page“labeled on the back side of the PCB and are arranged with a 0.1″ spacing along the edge of the board for compatibility with” |
| Male header strips included (straight + right-angle) | yes | vendor page“4x1 straight male header strip or the 4x1 right-angle male header strip that is included. Typical efficiency and output current The efficiency of a” |
General
| Output voltage | 5 V | vendor page“Pololu 5V, 500mA Step-Down Voltage Regulator D24V5F5 Voltage Regulato” |
| Output current | 500 mA | vendor page“Pololu 5V, 500mA Step-Down Voltage Regulator D24V5F5 Voltage Regulators and” |
| Input voltage | 5.1 to 36 V | vendor page“pical max output current 1 Input voltage range 2 5 V 500 mA 5.1 V - 36 V Note 1: Actual achievable maximum continuous output current” |
Used in
2wd-robot · plant-waterer — as regulator