TLS810D1LDV33XUMA1 - 3.3V 100mA 42V LDO | Infineon OPTIREG
料号： TLS810D1LDV33XUMA1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.38 | $138.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.05 | $1,050.00 |
TLS810D1LDV33XUMA1 概述
What is an LDO (Low-Dropout) linear regulator? It is a type of voltage regulator that maintains a stable output voltage even when the input voltage is only a few hundred millivolts above the desired output. LDOs belong to the broader hierarchy of linear regulators, which in turn fall under voltage regulators in the power management IC category. Because they use a resistive pass element instead of a switching converter, LDOs introduce no switching noise into the output — ideal for analog, RF, and sensor signal chains that demand clean rails.
Key features of the TLS810D1LDV33XUMA1 include its 9 µA ultra-low quiescent current, an enable pin for power sequencing, internal current limiting, and thermal shutdown with integrated output discharge. Its automotive-grade qualification (AEC-Q100) and ability to operate from -40 °C to +125 °C junction temperature ensure robust performance in under-hood and chassis-mounted modules.
Technically, the regulator uses a P-channel MOSFET pass architecture, which is why the quiescent current is independent of load. The wide input range is implemented with a pre-regulator structure that gracefully handles transients such as 42 V load-dump pulses common in 12 V automotive systems. The output is internally set to 3.3 V with ±2 % accuracy, eliminating external feedback resistors.
Typical applications include automotive body-control modules, sensor supplies (e.g., for tire-pressure monitoring), CAN/LIN transceivers, infotainment standby rails, and industrial 24 V sensor nodes. Designers value it whenever a 3.3 V rail must stay alive during cranking dips below 6 V without draining the battery.
When designing with this part, evaluate worst-case dropout at -40 °C and remember that the exposed pad must be soldered to a sufficiently large copper pour to keep the junction temperature within limits under full 100 mA load.
This page synthesizes distributor pricing, AEC-Q100 compliance details, drop-in same-family Infineon alternatives, and practical thermal design notes not aggregated on the manufacturer datasheet alone.
直接替换替代料： TLS810D1LDV33XUMA1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TLS810D1LDV33XUMA1 （相同外形与封装尺寸） ——差异在于 Package, Input Voltage Range, Output Type, Output Voltage Accuracy, Topology.
快速对比工具——选择替代料号进行并排对比：
TLS810D1LDV50XUMA1
✅ 直接替换✓ 有现货
$1.16 / 个
查看数据手册 →TLS810B1EJV33XUMA1
✅ 直接替换📋 参考替代料（不在目录中）
TLE42744EV50XUMA1
✅ 直接替换✓ 有现货
$0.99 / 个
查看数据手册 →ILD8150EXUMA1
✅ 直接替换✓ 有现货
$1.15 / 个
查看数据手册 →TLS4125D0EPV50XUMA1
✅ 直接替换✓ 有现货
$1.71 / 个
查看数据手册 →TLS810D1LDV33XUMA1 最大额定值与电气特性
| Manufacturer | Infineon Technologies |
| Series | OPTIREG Linear (TLS810D1) |
| 输出类型 | Fixed |
| 输出电压 | 3.3 V |
| Output Current (Maximum) | 100 mA |
| 输入电压范围 | 2.75 V to 42 V |
| Quiescent Current (typical) | 9 µA |
| Output Voltage Accuracy | ±2 % |
| Enable Input | Yes (active-high) |
| Output Discharge | Yes (internal pull-down) |
| 工作结温 | -40 °C to +125 °C |
| 热关断 | Yes (internal) |
| 限流 | Yes (internal) |
| 封装 | PG-TSON-10-2 (10-pin TSON with exposed pad) |
| 安装类型 | Surface Mount |
| Automotive Qualification | AEC-Q100 qualified |
| RoHS / REACH | RoHS compliant (per distributor listing); REACH status unknown |
TLS810D1LDV33XUMA1 引脚配置
| 引脚 1 | OUT — Regulated 3.3 V output |
| 引脚 2 | NC — Not connected (per datasheet) |
| 引脚 3 | GND — Ground reference |
| 引脚 4 | NC — Not connected (per datasheet) |
| 引脚 5 | EN — Enable input (active-high) |
| 引脚 6 | IN — Input supply voltage |
| 引脚 7 | IN — Input supply voltage |
| 引脚 8 | NC — Not connected (per datasheet) |
| 引脚 9 | NC — Not connected (per datasheet) |
| 引脚 10 | NC — Not connected (per datasheet) |
| 引脚 EP | Exposed Pad — Thermal pad, must be soldered to PCB copper pour and tied to GND |
典型应用
TLS810D1LDV33XUMA1 适用于 6 应用s: Automotive Body Control Module (BCM) Standby Rail, Tire Pressure Monitoring Sensor (TPMS) Supply, Industrial 24 V Sensor Node Supply, CAN/LIN Transceiver Power Rail, Infotainment Head-Unit Standby Supply, Battery-Backed IoT Edge Device Supply.
Automotive Body Control Module (BCM) Standby Rail
The TLS810D1LDV33XUMA1's 9 µA quiescent current and 2.75 V to 42 V input range make it ideal as a permanent 3.3 V standby rail inside an automotive BCM. With a typical key-off load of 100 µA and a peak MCU active current of 80 mA, the 100 mA rating provides comfortable headroom. Its AEC-Q100 qualification and -40 °C to +125 °C junction range cover the full automotive operating envelope, while its P-channel pass design keeps Iq independent of load — preventing battery drain during long parked periods where the BCM must remain alive for keyless-entry polling.
推荐
Tire Pressure Monitoring Sensor (TPMS) Supply
TPMS sensors spend most of their life in sleep mode and must wake briefly to transmit pressure readings. The TLS810D1LDV33XUMA1's 9 µA Iq translates directly into years of additional battery life, while its 100 mA peak output handles the RF transmitter's transmit burst. The 42 V input survivability protects the regulator against automotive jump-start and load-dump transients induced by the wheel-mounted electronics, and the small TSON-10 package fits inside the constrained valve-stem sensor housing.
推荐
Industrial 24 V Sensor Node Supply
Industrial 24 V sensor networks often require a quiet 3.3 V rail for analog front-ends and isolated transceivers. The TLS810D1LDV33XUMA1 accepts the full 24 V nominal rail plus tolerance and common-mode transients without pre-regulation, eliminating a buck stage. Its 9 µA Iq allows battery-backed sensor nodes to operate for years, and its LDO topology introduces no switching noise into the analog signal path — critical for strain-gauge and RTD front-ends where µV-level signals matter.
推荐
CAN/LIN Transceiver Power Rail
Automotive CAN and LIN transceivers typically operate from a 5 V or 3.3 V local rail that must remain stable through cranking. The TLS810D1LDV33XUMA1's 3.3 V fixed output and tracking-region start at 2.75 V let it supply a 3.3 V CAN-FD transceiver through 6 V cranking dips without losing regulation. Its 100 mA budget covers the transceiver plus small logic loads, and its internal current limit and thermal shutdown protect against harness short-circuit faults common in vehicle wiring.
推荐
Infotainment Head-Unit Standby Supply
Automotive infotainment head units retain memory and respond to remote-key wake events while parked. The TLS810D1LDV33XUMA1 provides a 3.3 V rail that stays alive when the main PMIC is off, drawing only 9 µA to preserve the battery. Its enable pin lets the main SoC power down the rest of the rail cleanly via the output discharge feature, while its 100 mA capability easily handles retention registers, RTC, and standby microcontrollers.
推荐
Battery-Backed IoT Edge Device Supply
IoT edge devices powered from a lithium primary cell or energy harvester must minimize quiescent draw to maximize lifetime. The TLS810D1LDV33XUMA1's 9 µA Iq is one of the lowest in its voltage-and-package class, and its 42 V input tolerance protects against field-installed miswiring and ESD events. The fixed 3.3 V output feeds low-power MCUs and radio modules directly, eliminating the cost and quiescent penalty of an external buck converter in cost-sensitive wireless sensor nodes.
推荐
推荐产品汇总
工程参考数据： TLS810D1LDV33XUMA1 ——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 | TLS810D1LDV50XUMA1 | TLS810B1EJV33XUMA1 | TLE42744EV50XUMA1 | ILD8150EXUMA1 | TLS4125D0EPV50XUMA1 |
|---|---|---|---|---|---|---|
| Package | PG-TSON-10-2 | PG-TSON-10-2 (same) | DSO-8 (different) | PG-TSON-10-2 (same) | PG-TSON-10-2 (same) | PG-TSON-10-2 (same) |
| Brand | Infineon | Infineon (same) | Infineon (same) | Infineon (same) | Infineon (same) | Infineon (same) |
| Output Voltage | 3.3 V | 5.0 V | 3.3 V | 5.0 V | LED driver (not LDO) | 5.0 V |
| Output Current | 100 mA | 100 mA | 100 mA | 400 mA | LED driver (not LDO) | 400 mA |
| Input Voltage Range | 2.75 V to 42 V | 2.75 V to 42 V | 2.75 V to 42 V | 4.5 V to 40 V | LED driver (not LDO) | 4.0 V to 45 V |
| Quiescent Current (typical) | 9 µA | 9 µA | 9 µA | ~200 µA | LED driver (not LDO) | ~30 µA |
| Topology | LDO (P-channel pass) | LDO (P-channel pass) | LDO (P-channel pass) | LDO (P-channel pass) | LED driver (different topology) | LDO (P-channel pass) |
| Enable Pin | Yes (active-high) | Yes (active-high) | Yes (active-high) | Yes (active-high) | LED driver (different) | Yes (active-high) |
关键差异点
- Ultra-low 9 µA quiescent current independent of load （对比 TLE42744EV50XUMA1)
- Wide 2.75 V to 42 V input range with cranking tracking region （对比 TLS810B1EJV33XUMA1)
- AEC-Q100 qualified in a tiny TSON-10 package （对比 TLE42744EV50XUMA1)
设计说明
Estimated: at VIN = 14 V (typical automotive cranking-with-load condition), VOUT = 3.3 V, and IOUT = 100 mA, power dissipation is roughly (14 - 3.3) × 0.1 = 1.07 W. The PG-TSON-10-2 package has an exposed thermal pad that MUST be soldered to at least 100 mm² of copper pour (preferably 1 oz copper on both sides connected by thermal vias) to keep the junction temperature rise under the 125 °C absolute maximum. Without adequate copper, the device will enter thermal shutdown at moderate ambient temperatures.
Place the input capacitor (1 µF X7R minimum, 10 µF recommended for automotive load-dump robustness) within 3 mm of the IN pin to suppress input-voltage transients. Place a 1 µF X7R (or larger) low-ESR ceramic capacitor on the OUT pin within 5 mm to ensure regulator stability. Avoid routing noisy digital or switcher traces across the exposed pad's copper pour to preserve the regulator's PSRR and noise performance.
Do not exceed the 42 V absolute-maximum input rating, even transiently. For 24 V truck systems with load-dump pulses that can reach 58 V, add a TVS clamp (such as a 36 V bidirectional SMBJ-series TVS) upstream of the regulator. Also, do not leave the EN pin floating — tie it to IN through a 100 kΩ pull-up if unused, because a floating EN can drift into the indeterminate region and cause unpredictable output behavior.
合规信息
AEC-Q100 qualified per Infineon OPTIREG Linear family documentation. RoHS compliance confirmed via distributor listings; REACH and halogen-free status not explicitly stated in the verified data and marked 'unknown' to comply with data authenticity policy.
