TPS74501PQWDRVRQ1 - Automotive 500mA LDO w/ Power-Good | TI
N.º da peça: TPS74501PQWDRVRQ1 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.48 | $1,48 |
| 10 | $1.32 | $13,20 |
| 100 | $1.1 | $110,00 |
| 500 | $0.94 | $470,00 |
| 1.000 | $0.82 | $820,00 |
| 3.000 | $0.71 | $2.130,00 |
TPS74501PQWDRVRQ1 Visão geral
An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage approaches the output voltage, characterized by very low dropout voltage and high power supply rejection ratio (PSRR). Within the broader power management hierarchy, the TPS74501PQWDRVRQ1 sits as a linear regulator, a sub-category of voltage regulators, which in turn are part of the power management IC (PMIC) family used to deliver clean, low-noise rails to digital and analog loads.
Key features include very low quiescent current (I_Q) for always-on systems, high PSRR across frequency for rejecting upstream switching-converter ripple, fast line and load transient response, and an open-drain power-good output for rail monitoring and processor reset coordination. The wettable-flank WSON package with optical-inspection-ready terminations supports automated optical inspection (AOI) on automotive PCB assembly lines. Internal protection features include thermal shutdown and current limit. Operating junction temperature spans -40 C to +150 C, qualifying the part for AEC-Q100 Grade 1 automotive stress profiles.
The TPS74501PQWDRVRQ1 uses a low-resistance P-channel pass element topology that delivers the low-dropout performance while maintaining an architecture that contributes to its low I_Q. The high PSRR makes the regulator well suited as a post-regulator following a switching DC-DC converter, cleaning the residual switching ripple before it reaches noise-sensitive analog blocks. The wettable flanks of the WSON-6 package enable solder-joint inspection on automotive production lines.
Typical applications include automotive ADAS sensor power rails, rear-view and surround-view camera modules, infotainment processors and telematics modules, body electronics and lighting controllers, and industrial PLC I/O supply rails. Anywhere a 0.55 V to 5.5 V clean low-noise rail at up to 500 mA is required in a small footprint, the TPS74501PQWDRVRQ1 is a strong fit.
When designing with this device, place the input and output ceramic capacitors as close as possible to the IC pins to maximize PSRR and load-transient performance. Always verify the power-good pull-up voltage does not exceed the absolute maximum rating, and respect the junction-to-ambient thermal resistance to avoid thermal shutdown in continuous high-power conditions.
This page synthesizes distributor stock data, drop-in same-package alternatives, and practical design notes not assembled in the manufacturer datasheet.
Alternativas drop-in para TPS74501PQWDRVRQ1 — 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 TPS74501PQWDRVRQ1 (mesmo formato e footprint) — diferindo em Automotive Qualification, Maximum Output Current, Operating Junction Temperature, Output Type, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TPS74518PQWDRVRQ1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS74511PQWDRVRQ1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS74533PQWDRVRQ1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS74525PQWDRVRQ1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS74510PQWDRVRQ1
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TPS74501PQWDRVRQ1 Classificações máximas e características elétricas
| Tipo de saída | Adjustable |
| Faixa de tensão de saída | 0.55 V to 5.5 V |
| Corrente máxima de saída | 500 mA |
| Faixa de tensão de entrada | 1.5 V to 6.0 V |
| Maximum Input Voltage | 6.0 V |
| Quiescent Current (I_Q) | Low I_Q (see datasheet) |
| Power Supply Rejection Ratio (PSRR) | High PSRR (see datasheet curve) |
| Saída Power Good | Open-drain PG pin |
| Pino de habilitação | Yes |
| Temperatura de junção de operação | -40 C to +150 C |
| Automotive Qualification | AEC-Q100 Grade 1 |
| Encapsulamento | 6-pin WSON (DRV) 2x2 mm with wettable flanks |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Desligamento térmico | Yes (internal) |
| Limitação de corrente | Yes (internal) |
Configuração de pinos do TPS74501PQWDRVRQ1
| Pino 1 | IN — Input supply voltage |
| Pino 2 | GND — Ground |
| Pino 3 | EN — Enable input (active-high) |
| Pino 4 | ADJ — Adjustable feedback node for output voltage programming |
| Pino 5 | PG — Power-good open-drain output |
| Pino 6 | OUT — Regulated output voltage |
Aplicações típicas
TPS74501PQWDRVRQ1 é adequado para 6 aplicaçãos: Automotive ADAS Sensor Power Rail, Rear-View and Surround-View Camera Module, Infotainment and Telematics Processor Supply, Automotive Body Electronics and Lighting, Industrial PLC and Sensor I/O Supply, Battery-Powered Always-On IoT Module.
Automotive ADAS Sensor Power Rail
The TPS74501PQWDRVRQ1 powers ADAS image sensors, radar transceivers, and LIDAR front-ends where clean low-noise rails are essential. The 500 mA output, 1.5 V to 6.0 V input range, and adjustable 0.55 V to 5.5 V output accommodate sensor analog and digital supply domains. The high PSRR rejects upstream switching-converter ripple, and the open-drain power-good signal can synchronize sensor exposure timing. AEC-Q100 Grade 1 qualification and the 2 mm x 2 mm wettable-flank WSON-6 footprint make it drop-in directly suited to under-hood and behind-bumper PCBAs with strict optical-inspection requirements.
Recomendado
Rear-View and Surround-View Camera Module
The TPS74501PQWDRVRQ1 powers image-sensor and ISP rails in automotive camera modules, where small size, low I_Q, and clean power are critical. The 6-pin WSON-6 2x2 mm footprint fits inside space-constrained camera housings, and the high PSRR protects the image sensor from power-rail noise that would otherwise leak into pixel data. The power-good output enables the host SoC to coordinate frame-buffer readiness, and AEC-Q100 Grade 1 qualification supports deployment behind the windshield, in the bumper, or under side mirrors.
Recomendado
Infotainment and Telematics Processor Supply
The TPS74501PQWDRVRQ1 powers infotainment SoCs, telematics modules, and gateway processors that require multiple sequenced low-voltage rails. The integrated enable input and open-drain power-good output let the host PMIC sequence core, memory, and I/O domains in the correct order, and the adjustable 0.55 V to 5.5 V output covers modern SoC core voltages as low as 0.55 V. The 500 mA output current supports processor active states, and AEC-Q100 Grade 1 qualification matches cabin and behind-audience thermal environments.
Recomendado
Automotive Body Electronics and Lighting
The TPS74501PQWDRVRQ1 powers body-control modules, LED drivers, and lighting controllers in automotive body networks, where low quiescent current and small size extend battery life during key-off states. The 1.5 V to 6.0 V input range lets the device ride through cold-crank transients typical of automotive 12 V battery systems when fed from a pre-regulated rail. AEC-Q100 Grade 1 qualification and the wettable-flank WSON-6 footprint support high-reliability production lines with optical solder-joint inspection.
Recomendado
Industrial PLC and Sensor I/O Supply
The TPS74501PQWDRVRQ1 powers industrial PLC analog input modules, sensor front-ends, and isolated I/O cards, where high PSRR is needed to reject the noise of switching DC-DC converters on the same board. The 500 mA continuous output current supports multiple downstream analog channels, and the adjustable 0.55 V to 5.5 V range covers ADC reference and op-amp supply voltages. The open-drain power-good output interfaces with the PLC controller for diagnostics, and the AEC-Q100 Grade 1 qualification over-qualifies for rugged industrial environments.
Recomendado
Battery-Powered Always-On IoT Module
The TPS74501PQWDRVRQ1 powers always-on microcontroller domains in automotive and industrial IoT modules, where low quiescent current and small package are paramount. The low I_Q extends battery life during sleep states, while the 500 mA peak output covers active-mode current spikes. The integrated enable pin and power-good output support wake-from-sleep sequencing, and the AEC-Q100 Grade 1 qualification over-qualifies for portable and remote-monitoring applications.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TPS74501PQWDRVRQ1 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TPS74518PQWDRVRQ1 | TPS74511PQWDRVRQ1 | TPS74533PQWDRVRQ1 | TPS74525PQWDRVRQ1 | TPS74510PQWDRVRQ1 |
|---|---|---|---|---|---|---|
| Package | 6-pin WSON (DRV) 2x2 mm | 6-pin WSON (DRV) 2x2 mm - same | 6-pin WSON (DRV) 2x2 mm - same | 6-pin WSON (DRV) 2x2 mm - same | 6-pin WSON (DRV) 2x2 mm - same | 6-pin WSON (DRV) 2x2 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Voltage | Adjustable 0.55 V to 5.5 V | Fixed 1.8 V | Fixed 1.1 V | Fixed 3.3 V | Fixed 2.5 V | Fixed 1.0 V |
| Maximum Output Current | 500 mA | 500 mA | 500 mA | 500 mA | 500 mA | 500 mA |
| Input Voltage Range | 1.5 V to 6.0 V | 1.5 V to 6.0 V | 1.5 V to 6.0 V | 1.5 V to 6.0 V | 1.5 V to 6.0 V | 1.5 V to 6.0 V |
| AEC-Q100 Qualification | Grade 1 | Grade 1 | Grade 1 | Grade 1 | Grade 1 | Grade 1 |
| Power-Good Output | Yes (open-drain) | Yes (open-drain) | Yes (open-drain) | Yes (open-drain) | Yes (open-drain) | Yes (open-drain) |
| Enable Pin | Yes | Yes | Yes | Yes | Yes | Yes |
Principais diferenciais
- Adjustable output voltage covers 0.55 V to 5.5 V (vs TPS74518PQWDRVRQ1)
- Lower current ceiling than the TPS746 family (vs TPS74601PQWDRVRQ1)
- AEC-Q100 Grade 1 qualified with wettable flanks (vs TPS745 (non-Q1) variants)
Notas de projeto
The TPS74501PQWDRVRQ1 is rated for 500 mA continuous output current. Estimated: at VIN=5.0 V, VOUT=3.3 V, and 500 mA load, dissipation is (5.0 - 3.3) * 0.5 = 0.85 W. With a typical 6-pin WSON 2x2 mm theta_JA on a JEDEC 4-layer board, this is well within the thermal envelope, but at VIN=5.0 V and VOUT=0.55 V (worst-case dropout) dissipation approaches 2.2 W and the junction-to-ambient rise becomes significant. Derate load or add copper pour if VIN-VOUT is large and I_OUT is near 500 mA.
Place the input capacitor as close as possible to the IN pin and the output capacitor as close as possible to the OUT pin to maximize PSRR and load-transient performance. Use low-ESR ceramic capacitors (X7R or X5R) with the values specified in the recommended capacitor table; under-sized output capacitance degrades load-transient response and may destabilize the regulation loop. Tie the exposed thermal pad to a ground copper pour for best thermal performance.
Do not exceed the absolute-maximum input voltage of 6.0 V at the IN pin - transients above this rating will damage the device. Use an upstream TVS rectifier or pre-regulator if the source rail can overshoot during automotive load-dump events. When programming the adjustable output, use 1 percent tolerance resistors in the ADJ divider to maintain output voltage accuracy across temperature.
Route the ADJ (feedback) trace away from switching nodes and noisy digital signals to avoid coupling noise into the feedback loop, which would degrade output ripple and PSRR. Keep the power-good pull-up resistor short and route the PG trace away from sources of EMI. On automotive PCBs, follow IPC-9592 power-conversion guidelines for thermal management and creepage/clearance.
Informações de conformidade
AEC-Q100 Grade 1 qualified per TI datasheet. RoHS compliant per distributor listings. Wettable-flank WSON-6 package supports automated optical inspection on automotive production lines.
