Demokatalog / Regulatorer
5V 500mA step-down regulator D24V5F5
Pololu · MPN 2843 · agentläsbar version
$8.95vägledande · 2026-08-22
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| Pololu | $8.95 · 2026-08-22 | produktsida ↗ |
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Specifikationer — varje värde bär sitt kvitto
Elektriskt
| Viloström vid tomgång, typ | 200 μA | leverantörssida“% 500 kHz switching frequency (when not in power-save mode) 200 μA typical no-load quiescent current Over-current and short-ci” |
| Överströms-/termiskt skydd | ja | leverantörssida“ight versions of the D24V5Fx family. The regulators feature short-circuit/over-current protection, and thermal shutdown helps prevent” |
| Skydd mot backspänning | nej | leverantörssida“shutdown helps prevent damage from overheating. The boards do not have reverse-voltage protection. If you need more output current, consider the very similar” |
| Topologi | buck (step-down) | leverantörssida“voltage regulator in TO-220 package. The D24V5Fx family of buck (step-down) voltage regulators generates lower output voltages from inp” |
| Tillämpligt VIN-område, familjen (före dropoutgränsen) | 3 till 36 V | leverantörssida“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” |
| Låg tröskel för SHDN (under) | 0.4 V | leverantörssida“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” |
| Pullup-motstånd från SHDN till VIN | 100 kΩ | leverantörssida“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” |
| Förbrukning med SHDN låg @ 36 V in (ca) | 360 μA | leverantörssida“tional to the input voltage. (At 36 V in it will draw about 360 μA.) The input voltage, VIN, powers the regulator. Voltages be” |
| Rek. ingångskondensator för ingångar >20 V (min) | 33 μF | leverantörssida“ads or supply has high inductance, we recommend soldering a 33 μF or larger electrolytic capacitor close to the regulator bet” |
| Rek. spänningstålighet för ingångskondensatorn (min) | 50 V | leverantörssida“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” |
Prestanda
| Switchfrekvens | 500 kHz | leverantörssida“mum output current: 500 mA Typical efficiency of 80% to 93% 500 kHz switching frequency (when not in power-save mode) 200 μA ty” |
| Typisk verkningsgrad | 80 till 93 % | leverantörssida“DC-to-DC converters) and have a typical efficiency between 80% to 93%, which is much more efficient than linear voltage regulator” |
| Utspänningens noggrannhet | 4 % | leverantörssida“12 V, or 15 V output (depending on regulator version) with 4% accuracy Maximum output current: 500 mA Typical efficiency” |
| Energisparläge vid låg last | ja | leverantörssida“input and output voltage is large. These regulators have a power-save mode that activates at light loads and a low quiescent (no load)” |
Gränssnitt
| Avstängningsstift (SHDN) | ja | leverantörssida“ections The buck regulator has four connections: shutdown ( SHDN ), input voltage (VIN), ground (GND), and output voltage (V” |
| Anslutningar | shutdown ( SHDN ), input voltage (VIN), ground (GND), and output voltage (VOUT) | leverantörssida“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” |
Mekaniskt
| Kortstorlek | 13 mm x 10 mm x 3 mm | leverantörssida“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” |
| Stiftavstånd | 0.1 ″ | leverantörssida“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” |
| Stiftlister av hantyp medföljer (raka + vinklade) | ja | leverantörssida“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” |
Allmänt
| Utspänning | 5 V | leverantörssida“Pololu 5V, 500mA Step-Down Voltage Regulator D24V5F5 Voltage Regulato” |
| Utström | 500 mA | leverantörssida“Pololu 5V, 500mA Step-Down Voltage Regulator D24V5F5 Voltage Regulators and” |
| Inspänning | 5.1 till 36 V | leverantörssida“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” |
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