TLV75801PDRVR - 500mA Adjustable LDO Regulator | Texas Instruments
料号： TLV75801PDRVR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.45 | $0.45 |
| 10 | $0.39 | $3.90 |
| 100 | $0.28 | $28.00 |
| 500 | $0.22 | $110.00 |
| 1,000 | $0.18 | $180.00 |
| 3,000 | $0.15 | $450.00 |
TLV75801PDRVR 概述
An LDO (low-dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input-to-output voltage differential approaches the device's dropout limit. Within the power management IC hierarchy, LDOs sit beneath switching regulators and buck converters and above simple Zener references; they are valued for their low noise, fast transient response, compact footprint, and absence of switching EMI. The TLV75801PDRVR extends this category with sub-130 mV dropout, sub-25 µA quiescent current, and high output accuracy that makes external feedback trimming unnecessary in most loads.
Key features include a 25 µA typical quiescent current, 130 mV maximum dropout at 500 mA load, internal soft-start, current limit, and thermal shutdown protection. The 6-pin WSON DRV package has an exposed thermal pad that delivers low thermal resistance, enabling sustained 500 mA output in space-constrained designs. The part also supports an operating junction temperature range of -40 °C to +125 °C, which is suitable for industrial and portable applications.
Technically, the TLV75801 uses a P-channel pass element architecture that achieves low dropout while keeping the input pin tolerant of voltages up to 6 V. Its internal reference is trimmed to 0.7% accuracy at room temperature and 1% across the full temperature range, eliminating the need for a precision external reference resistor in cost-sensitive designs. The device is also designed for fast line and load transient response, which is important for powering microcontrollers, RF blocks, and analog signal chain loads.
Typical applications include portable and battery-powered electronics such as wearables, IoT sensors, wireless modules, industrial sensors, and any 1-cell Li-ion or multi-rail system requiring post-regulation after a DC-DC converter. The wide 0.55 V to 5.5 V adjustable range also makes it ideal for powering low-voltage MCUs, FPGAs, and analog ICs that require a clean low-voltage rail.
When designing with the TLV75801PDRVR, ensure that the input capacitor is placed close to the IN pin and the output capacitor is close to the OUT pin with the ESR recommended by the datasheet. Because the dropout is only 130 mV at full load, the regulator can stay in regulation until the battery nears depletion, which extends runtime in portable systems. A 1% feedback resistor divider is recommended to preserve the 1% accuracy specification.
This page synthesizes real-time distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： TLV75801PDRVR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TLV75801PDRVT
✅ 直接替换📋 参考替代料（不在目录中）
TLV75801PDBVR
✅ 直接替换📋 参考替代料（不在目录中）
TLV75801PDRVR
✅ 直接替换✓ 有现货
$0.15 / 个
查看数据手册 →TLV75833PDRVR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TLV75818PDRVR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TLV75801PDRVR 最大额定值与电气特性
| Manufacturer | Texas Instruments |
| Series | TLV758P |
| 输出类型 | Adjustable (Positive) |
| 输出数量 | 1 |
| 输入电压范围 | 1.5 V to 6.0 V |
| Adjustable Output Voltage Range | 0.55 V to 5.5 V |
| 最大输出电流 | 500 mA |
| Dropout Voltage (max) | 130 mV at 500 mA, 3.3 Vout |
| Output Accuracy | 0.7% typical, 1% maximum over temperature |
| Quiescent Current (Iq) | 25 µA typical |
| 工作温度范围 | -40 °C to +125 °C junction |
| 封装 | 6-WSON (DRV) 2 mm x 2 mm with exposed thermal pad |
| 安装类型 | Surface Mount |
| Protection Features | Current limit, thermal shutdown |
| RoHS 状态 | Compliant |
TLV75801PDRVR 引脚配置
| 引脚 1 | IN — Input voltage supply (1.5 V to 6.0 V) |
| 引脚 2 | IN — Input voltage supply (tied to pin 1) |
| 引脚 3 | EN — Enable input (active high) |
| 引脚 4 | ADJ — Adjust/feedback pin for external resistor divider |
| 引脚 5 | OUT — Regulated output voltage |
| 引脚 6 | OUT — Regulated output voltage (tied to pin 5) |
典型应用
TLV75801PDRVR 适用于 6 应用s: Wearable and Fitness Tracker Power Rail, IoT Sensor Node Post-Regulation, Portable Medical Monitor Power Supply, FPGA Core Voltage Rail, Industrial Sensor and 4-20 mA Loop Power, Battery Charger Auxiliary Rail.
Wearable and Fitness Tracker Power Rail
The TLV75801PDRVR fits wearable and fitness-tracker power designs because its 25 µA typical quiescent current and 130 mV maximum dropout let the system stay in regulation deeper into battery discharge, while the 0.55 V to 5.5 V adjustable output covers low-voltage MCU cores, BLE radios, and sensor rails. Placed between a 3.7 V Li-ion cell and a 1.8 V sensor rail, the part dissipates approximately 0.95 W at 500 mA load. The 6-pin WSON DRV 2x2 mm footprint leaves room for a small wearable PCB, and unlike a switching regulator it adds no EMI that would disturb BLE reception.
推荐
IoT Sensor Node Post-Regulation
The TLV75801PDRVR is ideal as a post-regulator after a DC-DC converter in IoT sensor nodes, where its 0.7% typical output accuracy and 1% over-temperature accuracy ensure ADC reference stability without external trimming. Its sub-130 mV dropout keeps efficiency high when the upstream buck rail sags under load, and the 25 µA Iq preserves battery life during sleep intervals. Placed after a 3.3 V buck output to deliver 2.8 V to a low-power MCU, it adds negligible quiescent load while cleaning up switching ripple.
推荐
Portable Medical Monitor Power Supply
Medical monitors and portable diagnostic devices benefit from the TLV75801PDRVR's 0.7% typical / 1% maximum output accuracy, which keeps analog front-end rails stable across temperature. The 500 mA continuous current supports a microcontroller, an LCD driver, and a sensor interface from a single LDO. Positioned between a Li-ion cell and a 3.3 V analog rail, it dissipates up to 0.85 W at full load - manageable on a 1 square inch copper pour with the WSON DRV exposed thermal pad.
推荐
FPGA Core Voltage Rail
Low-cost FPGAs and CPLDs that require a low-voltage core rail can be powered by the TLV75801PDRVR with its 0.55 V minimum adjustable output. The 500 mA current capability covers many small FPGAs' core current demands, and the 130 mV dropout means the upstream 1.8 V rail can sag to 1.93 V without losing regulation. Placed at the output of a 1.8 V buck converter, it delivers 1.0 V to the FPGA core with sub-25 µA quiescent draw.
推荐
Industrial Sensor and 4-20 mA Loop Power
The TLV75801PDRVR supports industrial sensor and 4-20 mA loop-powered applications with its -40 °C to +125 °C operating junction temperature and current-limit/thermal-shutdown protection. The 6 V maximum input lets it ride through transients on a 24 V loop when followed by a pre-regulator. In a typical loop transmitter, it post-regulates from a 5 V rail to 3.3 V for the sensor and ADC with 0.7% accuracy that keeps the loop calibration stable.
推荐
Battery Charger Auxiliary Rail
The TLV75801PDRVR is well suited as an auxiliary rail for a battery charger IC, providing a stable 0.55 V to 5.5 V output for status LEDs, charger MCU, or fuel-gauge ICs. Its 130 mV dropout keeps regulation when the battery nears full and the charger enters constant-voltage mode. Placed between the system battery and a 3.3 V charger MCU, it consumes only 25 µA Iq, which does not meaningfully affect charging efficiency.
推荐
推荐产品汇总
工程参考数据： TLV75801PDRVR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TLV75801PDRVT | TLV75801PDBVR | TLV75833PDRVR | TLV75818PDRVR |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 6-WSON (DRV) 2x2 mm | 6-WSON (DRV) 2x2 mm - same | 6-WSON (DRV) 2x2 mm - same | 6-WSON (DRV) 2x2 mm - same | 6-WSON (DRV) 2x2 mm - same |
| Output Type | Adjustable (0.55 V to 5.5 V) | Adjustable (0.55 V to 5.5 V) | Adjustable (0.55 V to 5.5 V) | Fixed 3.3 V | Fixed 1.8 V |
| Maximum Output Current | 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 |
| Dropout (max) | 130 mV at 500 mA | 130 mV at 500 mA | 130 mV at 500 mA | 130 mV at 500 mA | 130 mV at 500 mA |
| Quiescent Current | 25 µA typical | 25 µA typical | 25 µA typical | 25 µA typical | 25 µA typical |
| Output Accuracy | 0.7% typ / 1% max | 0.7% typ / 1% max | 0.7% typ / 1% max | 1.5% typ / 2% max (fixed version) | 1.5% typ / 2% max (fixed version) |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C |
关键差异点
- Sub-130 mV dropout extends battery runtime in portable designs （对比 TLV75512PDRVR (fixed 1.2 V))
- Adjustable output covers 0.55 V to 5.5 V in one SKU （对比 TLV75518PDRVR (fixed 1.8 V))
- 0.7% typical output accuracy eliminates external trim resistors （对比 Generic 3% LDO)
- 6-pin WSON DRV 2x2 mm footprint fits wearable and IoT PCBs （对比 SOT-23-5 LDOs)
设计说明
At Vin = 5 V, Vout = 3.3 V, and 500 mA load, power dissipation is approximately 0.85 W. The WSON DRV 2x2 mm package relies on the exposed thermal pad for heat removal; solder the pad to a copper area of at least 1 square inch on the top or bottom layer. Without adequate copper, the junction temperature can exceed +125 °C and trigger thermal shutdown at high ambient temperatures.
Place the input capacitor as close as possible to the IN pin (pin 1) and the output capacitor as close as possible to the OUT pin (pin 5). TI recommends a 1 µF ceramic input capacitor and a 1 µF ceramic output capacitor with X7R or X5R dielectric. Keep the ADJ/FB trace short and away from noisy switching nodes to prevent output noise pickup at the feedback node.
Do not exceed the absolute maximum input voltage of 6.5 V on the IN pin. Use 1% tolerance or better resistors in the external feedback divider to preserve the 1% output accuracy specification. The EN pin is internally pulled to a known state per the datasheet - verify the logic-level threshold for your system before relying on the default. Output capacitor ESR must stay within the datasheet stability range; very low-ESR ceramic capacitors are acceptable, but extremely low-ESR values below 1 mΩ can cause instability.
Route the OUT traces as a star from the regulator pin to the load to minimize voltage drop and avoid high-current paths crossing the feedback trace. Keep the ground return of the output capacitor tied to the thermal pad and to the system ground at a single point to prevent ground bounce from injecting noise into the feedback loop.
合规信息
RoHS compliance inferred from the TI TLV758P product page and standard TI lead-free packaging. Halogen-free status not explicitly stated in the verified data.
