LD6836TD/14H,125

Product Overview

The LD6836TD/14H,125 from NXP USA Inc. is a positive fixed-output linear voltage regulator that provides a single 1.4 V rail at up to 300 mA. It accepts an input voltage up to 5.5 V and specifies a maximum dropout of 0.2 V at 300 mA, which supports low headroom operation in compact power paths. Quiescent current is 100 µA, with maximum supply current of 250 µA, and power-supply rejection is 55 dB at 1 kHz. The device includes an enable control feature and over-current and over-temperature protection. It is rated for operation from -40°C to 85°C and is supplied in a surface-mount SC-74A, SOT-753 package, identified as 5-TSOP.

Key Features

• Single positive fixed output at 1.4 V with 300 mA output current.
• Maximum input voltage of 5.5 V and maximum dropout of 0.2 V at 300 mA.
• Quiescent current of 100 µA and maximum supply current of 250 µA.
• PSRR of 55 dB at 1 kHz.
• Enable control feature.
• Over-current and over-temperature protection features.
• Operating temperature range of -40°C to 85°C.
• Surface-mount SC-74A, SOT-753 package, identified as 5-TSOP.

Applications

• Fixed 1.4 V rail for compact electronics.
• Enable-controlled output rail in embedded modules.
• Protected supply path for low-current loads in surface-mount assemblies.
• Noise-sensitive supply path where 55 dB PSRR at 1 kHz is relevant.

Design & Procurement Notes

For selection, consider that the regulator provides a fixed 1.4 V output and accepts up to 5.5 V input; the 0.2 V dropout at 300 mA is relevant when calculating input-to-output headroom. The 100 µA quiescent current and 250 µA maximum supply current are useful parameters for low-power budget analysis. The enable control feature supports output activation, while over-current and over-temperature protection should be accounted for in fault-condition design. Board layout should accommodate the surface-mount SC-74A, SOT-753, 5-TSOP package and the -40°C to 85°C operating range.