Catálogo de demonstração / Reguladores

5V 500mA step-down regulator D24V5F5
Foto: Pololu · obtida em 2026-08-18 · sha256 42b73c5a38da…

5V 500mA step-down regulator D24V5F5

Pololu · MPN 2843 · versão legível por agentes

$8.95indicativo · 2026-08-22

Recolhido dos próprios dados estruturados da Pololu na data indicada — não é um orçamento. A disponibilidade não é deliberadamente afirmada.

Pololu$8.95 · 2026-08-22página do produto ↗

Ficha de especificações corroborada da Partsgraph (PDF)documento próprio · compilado a partir das fontes abaixo

Regulator product page

Especificações — cada valor traz o seu comprovativo

Elétrico

Corrente de repouso em vazio, typ200 μA
página do fornecedor
“% 500 kHz switching frequency (when not in power-save mode) 200 μA typical no-load quiescent current Over-current and short-ci”

https://www.pololu.com/product/2843

Proteção contra sobrecorrente / térmicasim
página do fornecedor
“ight versions of the D24V5Fx family. The regulators feature short-circuit/over-current protection, and thermal shutdown helps prevent”

https://www.pololu.com/product/2843

Proteção contra tensão inversanão
página do fornecedor
“shutdown helps prevent damage from overheating. The boards do not have reverse-voltage protection. If you need more output current, consider the very similar”

https://www.pololu.com/product/2843

Topologiabuck (step-down)
página do fornecedor
“voltage regulator in TO-220 package. The D24V5Fx family of buck (step-down) voltage regulators generates lower output voltages from inp”

https://www.pololu.com/product/2843

Gama de VIN aplicável, família (antes do limite de dropout)3 a 36 V
página do fornecedor
“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”

https://www.pololu.com/product/2843

Limiar baixo de SHDN (abaixo de)0.4 V
página do fornecedor
“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”

https://www.pololu.com/product/2843

Resistência de pull-up de SHDN para VIN100 kΩ
página do fornecedor
“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”

https://www.pololu.com/product/2843

Consumo com SHDN em nível baixo @ 36 V de entrada (aprox.)360 μA
página do fornecedor
“tional to the input voltage. (At 36 V in it will draw about 360 μA.) The input voltage, VIN, powers the regulator. Voltages be”

https://www.pololu.com/product/2843

Condensador de entrada recomendado para entradas >20 V (min)33 μF
página do fornecedor
“ads or supply has high inductance, we recommend soldering a 33 μF or larger electrolytic capacitor close to the regulator bet”

https://www.pololu.com/product/2843

Tensão nominal recomendada do condensador de entrada (min)50 V
página do fornecedor
“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”

https://www.pololu.com/product/2843

Desempenho

Frequência de comutação500 kHz
página do fornecedor
“mum output current: 500 mA Typical efficiency of 80% to 93% 500 kHz switching frequency (when not in power-save mode) 200 μA ty”

https://www.pololu.com/product/2843

Rendimento típico80 a 93 %
página do fornecedor
“DC-to-DC converters) and have a typical efficiency between 80% to 93%, which is much more efficient than linear voltage regulator”

https://www.pololu.com/product/2843

Exatidão da tensão de saída4 %
página do fornecedor
“12 V, or 15 V output (depending on regulator version) with 4% accuracy Maximum output current: 500 mA Typical efficiency”

https://www.pololu.com/product/2843

Modo de poupança com cargas levessim
página do fornecedor
“input and output voltage is large. These regulators have a power-save mode that activates at light loads and a low quiescent (no load)”

https://www.pololu.com/product/2843

Interface

Pino de desativação (SHDN)sim
página do fornecedor
“ections The buck regulator has four connections: shutdown ( SHDN ), input voltage (VIN), ground (GND), and output voltage (V”

https://www.pololu.com/product/2843

Ligaçõesshutdown ( SHDN ), input voltage (VIN), ground (GND), and output voltage (VOUT)
página do fornecedor
“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”

https://www.pololu.com/product/2843

Mecânico

Tamanho da placa13 mm x 10 mm x 3 mm
página do fornecedor
“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”

https://www.pololu.com/product/2843

Espaçamento entre pinos0.1 ″
página do fornecedor
“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”

https://www.pololu.com/product/2843

Barras de pinos macho incluídas (direitas + em ângulo reto)sim
página do fornecedor
“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”

https://www.pololu.com/product/2843

Geral

Tensão de saída5 V
página do fornecedor
“Pololu 5V, 500mA Step-Down Voltage Regulator D24V5F5 Voltage Regulato”

https://www.pololu.com/product/2843

Corrente de saída500 mA
página do fornecedor
“Pololu 5V, 500mA Step-Down Voltage Regulator D24V5F5 Voltage Regulators and”

https://www.pololu.com/product/2843

Tensão de entrada5.1 a 36 V
página do fornecedor
“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”

https://www.pololu.com/product/2843

Usado em

Robô explorador de 2 rodas motrizes · Rega automática de plantas — como Alimentação da bomba