TLE42662GHTMA2 - 5V 150mA LDO Regulator w/ INH | Infineon
MPN: TLE42662GHTMA2 ✓ Hoạt độngTLE42662GHTMA2 Tóm tắt
A Low-Dropout (LDO) regulator is a type of linear voltage regulator that maintains a stable output voltage even when the input-to-output voltage difference is small. Within the broader semiconductor taxonomy, an LDO belongs to the family of linear regulators, which in turn are a subclass of voltage regulators, falling under the power management IC (PMIC) category. The TLE42662GHTMA2 is part of Infineon's OPTIREG™ linear family and is functionally compatible with the legacy TLE4266 device, but with substantially reduced quiescent current for always-on automotive applications.
Key features include a fixed 5 V output with tight regulation accuracy, current limit protection, thermal shutdown, overtemperature protection, and reverse-polarity protection. The INH pin enables the regulator to be put into a low-quiescent standby state, which is essential for automotive modules that must remain connected to the battery without draining it during parking. The SOT-223-4 package provides sufficient copper area on its tab to dissipate heat at moderate load currents without external heatsinking.
The device uses a monolithic bipolar architecture with an integrated pass element and bandgap reference. The architecture is optimized for very low quiescent current draw while still providing the transient response and PSRR required for microcontroller and sensor supply rails. Built-in protective features guard against load-dump transients common in automotive electrical systems.
Typical applications include automotive microcontroller power supplies, body and chassis ECUs, sensor and actuator power rails, and always-on standby supplies for CAN/LIN transceivers. It is qualified for use in harsh automotive environments. When designing with this regulator, ensure that the input voltage remains within the safe operating range under load-dump conditions and that the SOT-223-4 tab is soldered to a sufficiently large copper pour to manage thermals at full 150 mA load.
This page synthesizes distributor pricing from DigiKey, Mouser, and Octopart, plus drop-in SOT-223-4 alternatives and practical PCB layout notes not found in the manufacturer datasheet, giving procurement and design engineers a single source of truth for sourcing and replacement decisions.
Bộ thay thế dễ dàng lắp đặt cho TLE42662GHTMA2 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TLE42662GHTMA2 (cùng hình factor và footprint) — khác nhau ở Package, Protection Features, Input Voltage Range, Output Voltage Accuracy, Maximum Output Current.
TLE4266-2G
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLE4266G
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLE42662GHTSA1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLS715B0EJV50XUMA1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →IFX1051LE
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
TLE42662GHTMA2 Tỷ lệ tối đa & tính chất điện
| Manufacturer | Infineon Technologies |
| Product Type | LDO Linear Voltage Regulator (Fixed Output) |
| Điện áp đầu ra | 5 V (fixed) |
| Điện áp đầu ra (tối đa) | 150 mA |
| Quiescent Current (ON) | 40 µA typical |
| Quiescent Current (OFF / INH low) | < 1 µA |
| Inhibit Pin (INH) | Yes (active-high; low = standby) |
| Protection Features | Current limit, overtemperature shutdown, reverse polarity |
| Hộp | PG-SOT223-4 (SOT-223-4 / TO-261-4) |
| Kiểu lắp đặt | Surface Mount |
| Automotive Qualified | Yes (Infineon OPTIREG linear family for automotive) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân TLE42662GHTMA2
| Chân 1 | IN — Input supply voltage (battery / pre-regulated rail) |
| Chân 2 | GND — Ground reference; also connected to metal tab for thermal dissipation |
| Chân 3 | INH — Inhibit input — pull high to enable, low for standby (< 1 µA Iq) |
| Chân 4 | OUT — Regulated 5 V output (up to 150 mA) |
Ứng dụng tiêu biểu
TLE42662GHTMA2 phù hợp cho 6 Áp dụngs: Automotive Body & Chassis ECU Power Supply, Always-On CAN/LIN Transceiver Standby Rail, Automotive Sensor Power Rail (5 V), Industrial 24 V PLC Logic Supply, Battery-Powered IoT Edge Node, LED Indicator & Display Driver Supply.
Automotive Body & Chassis ECU Power Supply
Provides a clean 5 V supply to body control modules (BCMs), door-zone ECUs, and lighting controllers operating from a 12 V automotive battery rail. The TLE42662GHTMA2's 150 mA output capability covers typical microcontroller plus sensor and relay-driver logic loads, while the INH pin supports key-off sleep modes with quiescent current dropping below 1 µA. Reverse-polarity and load-dump robustness from the OPTIREG linear architecture protects the ECU during jump-start and cranking transients, and the SOT-223-4 tab solders directly to a copper pour for thermal relief at full 150 mA load.
Được đề xuất
Always-On CAN/LIN Transceiver Standby Rail
Supplies the standby logic of CAN and LIN transceivers that must remain connected to the automotive bus during vehicle parking to handle wake-up frames. The TLE42662GHTMA2's < 1 µA OFF-mode quiescent current preserves battery life over weeks of inactivity, while the 5 V fixed output matches the VIO rail requirements of modern automotive transceivers. The INH pin can be tied to the wake-up output of the transceiver so the rest of the ECU only powers up when a valid wake frame is received, dramatically reducing quiescent drain.
Được đề xuất
Automotive Sensor Power Rail (5 V)
Powers 5 V automotive sensors such as pressure, temperature, and Hall-effect devices that feed the ECU's analog front end. The TLE42662GHTMA2's low output noise and tight line/load regulation keep sensor readings stable across cranking transients, while internal current limiting protects against sensor short-to-battery faults. The SOT-223-4 footprint mounts on the same sensor PCB or ECU sub-board as the sensor itself, simplifying harness design and reducing wire count compared to a centralized regulator.
Được đề xuất
Industrial 24 V PLC Logic Supply
Steps a 24 V industrial bus down to a clean 5 V rail for PLC logic, isolated I/O modules, and HMI controllers. The TLE42662GHTMA2 handles industrial surge and brownout events thanks to its reverse-polarity and thermal protection, and the INH pin enables software-controlled standby of unused I/O banks. Although the input voltage must stay within the regulator's safe range (verify against the datasheet absolute maximums), the part's automotive-grade robustness makes it a reliable choice for factory-floor deployments where electrical noise is heavy.
Được đề xuất
Battery-Powered IoT Edge Node
Provides regulated 5 V to IoT edge nodes, smart-home bridges, and remote telemetry units powered by a 12 V or multi-cell battery pack. The TLE42662GHTMA2's < 1 µA standby via INH lets the node sleep for months between transmissions, while its 150 mA output supports short bursts of wireless transmission and sensor acquisition. Combined with a low-Iq microcontroller, the system can operate from a small battery for extended service intervals without maintenance.
Được đề xuất
LED Indicator & Display Driver Supply
Supplies constant 5 V to status LEDs, segment displays, and small graphic OLED panels in automotive instrument clusters, infotainment heads, and after-market dashboards. The TLE42662GHTMA2's low output noise prevents visible flicker in PWM-dimmed LED strings, and its thermal shutdown protects the regulator if a display fault shorts the supply rail. The INH pin can be tied to the cluster's ignition-sense line so the display powers down cleanly when the vehicle is off.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TLE42662GHTMA2 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TLE4266-2G | TLE4266G | TLE42662GHTSA1 | TLS715B0EJV50XUMA1 | IFX1051LE |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-SOT223-4 | PG-SOT223-4 - same | PG-SOT223-4 - same | PG-SOT223-4 - same | PG-SOT223-4 - same | PG-SOT223-4 - same |
| Output Voltage | 5 V (fixed) | 5 V (fixed) | 5 V (fixed) | 5 V (fixed) | 5 V (fixed) | 5 V (fixed) |
| Output Current (max) | 150 mA | 150 mA | 150 mA | 150 mA | 150 mA+ | 150 mA |
| INH / Enable Pin | Yes (active-high inhibit) | Yes | Yes | Yes | EN pin (different polarity - verify) | Yes |
| Reverse-Polarity Protection | Yes | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Sub-1 µA standby quiescent current with INH control (vsTLE4266G (legacy))
- Pin-compatible upgrade path within OPTIREG family (vsTLE4266-2G (bare die))
- Compact 5 V/150 mA in SOT-223-4 with INH (vsTLE42702DATMA1 (1 A in DPAK))
Ghi chú thiết kế
At VIN = 12 V, VOUT = 5 V, and 150 mA load, the TLE42662GHTMA2 dissipates roughly 1.05 W. Solder the SOT-223-4 metal tab to at least 100 mm² of 1 oz copper pour to keep junction temperature within safe limits. For continuous loads above 100 mA in an enclosed automotive housing, add thermal vias to an inner plane and consider derating above 85 °C ambient.
Place the input capacitor (≥ 100 nF, low-ESR ceramic) as close as possible to the IN pin and the output capacitor (≥ 1 µF, low-ESR ceramic or tantalum) close to the OUT pin. Minimize the loop area between IN/GND and OUT/GND to reduce high-frequency noise and improve transient response. Keep the INH trace away from switching nodes to avoid spurious enable pulses.
Do not leave the INH pin floating — if unused, tie it directly to IN through a 100 kΩ resistor to guarantee regulator enable. Do not exceed the absolute maximum input voltage (refer to the Infineon datasheet for the exact value). Avoid reverse-polarity events by ensuring the input protection network handles load-dump transients typical of 12 V automotive systems.
Thông tin tuân thủ
AEC-Q100 qualification per Infineon OPTIREG automotive linear family. RoHS and REACH compliance per Infineon product page. Halogen-free status not explicitly stated in provided data — marked unknown.
