TLE42662GHTMA2 - 5V 150mA LDO Regulator w/ INH | Infineon
MPN: TLE42662GHTMA2 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.55 | $2.55 |
| 10 | $2.29 | $22.90 |
| 100 | $1.84 | $184.00 |
| 500 | $1.47 | $735.00 |
| 1,000 | $1.18 | $1,180.00 |
Drop-in alternatives for TLE42662GHTMA2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TLE4266-2G
✅ Drop-In📋 Reference alternative (not in catalog)
TLE4266G
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TLE42662GHTSA1
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TLS715B0EJV50XUMA1
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →IFX1051LE
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
TLE42662GHTMA2 Maximum Ratings & Electrical Characteristics
| Manufacturer | Infineon Technologies |
| Product Type | LDO Linear Voltage Regulator (Fixed Output) |
| Output Voltage | 5 V (fixed) |
| Output Current (max) | 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 |
| Package | PG-SOT223-4 (SOT-223-4 / TO-261-4) |
| Mounting Type | Surface Mount |
| Automotive Qualified | Yes (Infineon OPTIREG linear family for automotive) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
TLE42662GHTMA2 Pin Configuration
| Pin 1 | IN — Input supply voltage (battery / pre-regulated rail) |
| Pin 2 | GND — Ground reference; also connected to metal tab for thermal dissipation |
| Pin 3 | INH — Inhibit input — pull high to enable, low for standby (< 1 µA Iq) |
| Pin 4 | OUT — Regulated 5 V output (up to 150 mA) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TLE42662GHTMA2 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for TLE42662GHTMA2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
| Quiescent Current (ON) | 40 µA typ | 40 µA typ | Higher than TLE4266-2 | 40 µA typ | ~36 µA typ | [DATA_NEEDED] |
| Quiescent Current (OFF / INH) | < 1 µA | < 1 µA | Higher (> 1 µA) - key drawback | < 1 µA | Low Iq design (verify) | [DATA_NEEDED] |
| 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 |
| Pricing (qty 1, USD) | ~USD 2.55 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Sub-1 µA standby quiescent current with INH control (vs TLE4266G (legacy))
- Pin-compatible upgrade path within OPTIREG family (vs TLE4266-2G (bare die))
- Compact 5 V/150 mA in SOT-223-4 with INH (vs TLE42702DATMA1 (1 A in DPAK))
Design Notes
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.
Compliance Information
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.
