MCP1711T-33I/5X - 3.3V 150mA Ultra-Low-IQ LDO | Microchip
N.º da peça: MCP1711T-33I/5X ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0.5497 | $0,55 |
| 10 | $0.5497 | $5,50 |
| 100 | $0.5497 | $54,97 |
| 500 | $0.5497 | $274,85 |
| 1.000 | $0.5497 | $549,70 |
| 3.000 | $0.5497 | $1.649,10 |
MCP1711T-33I/5X Visão geral
An LDO is a linear regulator that passes voltage from its input to its output through a conducting pass element while regulating the output to a defined level. LDOs are used when low noise, simple power conversion, and low standby demand matter more than conversion efficiency. The MCP1711 family is positioned within the voltage-regulator and power-management IC hierarchy for small loads and distributed rails.
The key benefit is extremely low quiescent current: 0.6 uA typical. This helps preserve battery capacity when the load is inactive. The regulator also supports up to 150 mA and provides a stable 3.3 V output without requiring an output capacitor, according to the manufacturer product page. These characteristics suit sensors, portable instrumentation, embedded systems, and compact industrial nodes.
The MCP1711 uses a CMOS implementation intended for accurate low-power regulation. Its fixed-output configuration removes the external resistor divider used by adjustable LDOs. The 1 x 1 mm UQFN package supports dense PCB layouts, while the exposed pad provides a thermal and electrical connection to the board when assembled according to the datasheet land pattern.
Typical designs place the MCP1711 downstream of a battery or low-voltage regulator and feed a 3.3 V rail to a microcontroller, wireless module, or sensor cluster. Because an LDO dissipates the difference between input and output voltage as heat, efficiency is highest when VIN is close to 3.3 V and load current is modest. At the 150 mA limit, designers should account for input/output headroom, startup behavior, and exposed-pad soldering.
This page combines the verified manufacturer specifications with distributor availability, package details, procurement data, and practical design guidance. It also distinguishes verified drop-in substitutes from package-only lookalikes so engineers can assess PCB compatibility without assuming that a similar package guarantees pin-to-pin replacement.
Alternativas drop-in para MCP1711T-33I/5X — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MCP1711T-33I/5X (mesmo formato e footprint) — diferindo em Dropout Voltage, Input Voltage Range, Output Voltage, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasMCP1711T-33I/5X Classificações máximas e características elétricas
| Product Type | Fixed-output CMOS low-dropout voltage regulator |
| Tensão de saída | 3.3 V |
| Corrente máxima de saída | 150 mA |
| Faixa de tensão de entrada | 1.4 V to 6 V |
| Tensão de dropout | 500 mV |
| Typical Quiescent Current | 0.6 uA |
| Configuração de saída | Positive, fixed, single output |
| Output Capacitor Requirement | Not required for stability |
| Encapsulamento | 4-UQFN exposed pad, 1 x 1 mm |
| Tipo de montagem | Surface mount |
| Supplier Package Designation | 4-UQFN |
| Manufacturer Packaging | Tape and reel |
Configuração de pinos do MCP1711T-33I/5X
| Pino 1 | VIN — Regulator input voltage |
| Pino 2 | GND — Regulator ground connection |
| Pino 3 | VOUT — Regulated 3.3 V output |
| Pino 4 | NC — Not connected; verify against the manufacturer pinout |
| Pino EP | GND — Exposed thermal pad connection; verify manufacturer land pattern |
Aplicações típicas
MCP1711T-33I/5X é adequado para 6 aplicaçãos: Battery-Powered IoT Sensor Nodes, Portable Wearable Electronics, Compact Industrial Sensor Interfaces, Low-Power Wireless Modules, Battery Management Monitoring, Low-Power Data Acquisition.
Battery-Powered IoT Sensor Nodes
The MCP1711T-33I/5X fits a battery-powered IoT node that requires a permanent 3.3 V rail for a sensor interface, microcontroller, or low-power radio. Its typical 0.6 uA quiescent current minimizes regulator overhead during sleep intervals, while the fixed 3.3 V output avoids a resistor divider and associated accuracy concerns. Place the device close to the protected loads and keep VIN sufficiently above 3.3 V to account for the stated 500 mV dropout figure and load transient. The principal trade-off is linear-conversion loss, which increases when the battery voltage is well above the regulated output.
Recomendado
Portable Wearable Electronics
A wearable design can use the MCP1711T-33I/5X for a compact 3.3 V rail feeding low-power control and sensor circuitry. The 1 x 1 mm UQFN package conserves board area, and the regulator requires no output capacitor for stability according to Microchip. Its 0.6 uA typical quiescent current is especially valuable during passive periods. Designers must still verify skin-contact safety, battery charging limits, thermal behavior, and cleaning-agent exposure at the system level; those product requirements are not established by the supplied component data.
Recomendado
Compact Industrial Sensor Interfaces
The MCP1711T-33I/5X is appropriate for small industrial sensor interfaces that operate from a low-voltage rail and require a regulated 3.3 V supply. Its 150 mA rating supports modest sensor clusters and controller islands without requiring a larger regulator package. The low quiescent current benefits sparsely sampled measurement nodes, while capacitor-free operation simplifies compact analog or digital front ends. Validate transient behavior for cable-connected sensors and maintain adequate input headroom; neither industrial qualification nor extended-temperature limits are established in the verified data provided.
Recomendado
Low-Power Wireless Modules
Use the MCP1711T-33I/5X when a compact wireless module requires a local 3.3 V supply and the design must keep standby overhead low. The regulator's 0.6 uA typical quiescent current is useful between transmit and receive events, and the 150 mA rating covers many small radio-and-control designs. Verify the radio's peak current, supply ripple tolerance, and startup sequencing against the complete datasheet. Because an LDO does not actively step voltage up or down, VIN must remain within 1.4 V to 6 V with suitable dropout margin.
Recomendado
Battery Management Monitoring
The MCP1711T-33I/5X can power battery-management monitoring logic when the system prefers a simple, low-leakage 3.3 V rail. Its low quiescent current reduces continuous overhead while the device monitors cell voltage or charger status. Place the regulator where its ground return shares a low-impedance path with the monitored electronics, and follow the datasheet exposed-pad land pattern. Care is required near a battery because static output accuracy, charger transients, and absolute maximum conditions are not specified in the verified snippets supplied.
Recomendado
Low-Power Data Acquisition
The MCP1711T-33I/5X can support a small data-acquisition front end when analog and digital circuitry share a 3.3 V rail. Its low quiescent current reduces unused-system overhead, and output-capacitor-free stability simplifies compact layouts. For measurement accuracy, engineers should keep the regulator's ground return controlled, minimize copper-loop impedance, and assess whether separate filtering is needed for reference and analog supplies. The 150 mA limit must cover the ADC, interfaces, and any digital control load under worst-case simultaneous operation.
Recomendado
Dados de referência de engenharia para MCP1711T-33I/5X — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Notas de projeto
Estimated linear-regulator dissipation is P = (VIN - VOUT) x IOUT. At VIN = 4.3 V, VOUT = 3.3 V, and IOUT = 100 mA, the estimated loss is 0.10 W; at 150 mA it is 0.15 W. Verify that the actual VIN range, load, ambient temperature, and exposed-pad copper area keep the junction within its datasheet limits. Use a switching stage when the voltage drop or load makes linear loss excessive.
Follow the manufacturer land pattern and exposed-pad guidance exactly. Place input and output connections as short as practical, provide an adequate ground return, and complete the pad with solder during reflow according to the package guidelines. The verified data confirms a 4-UQFN exposed pad but does not provide the land-pattern dimensions, so use the official package drawing rather than estimating them.
Do not treat a generic 3.3 V LDO as an automatic substitute. A valid drop-in part must match the footprint, pin assignment, exposed-pad connection, enable or shutdown behavior, and capacitor requirements. The verified alternatives search did not identify a confirmed cross or replacement, so verify the MCP1711 pinout and complete electrical limits against the manufacturer datasheet before any redesign or substitute proposal.
Informações de conformidade
No verified compliance declarations were included in the supplied data; status is therefore unknown rather than assumed.
