Texas Instruments Fixed LDO Voltage Regulator 10V 500mA

The Texas Instruments fixed low-dropout (LDO) positive voltage regulator delivers a stable 10V output with a maximum load current of 500mA.

Overview

The regulator uses a PNP power transistor architecture that achieves a typical dropout voltage of 500mV at full load. This makes it well suited to applications where the input voltage is only slightly higher than the required output, helping to maximise battery life and system efficiency. Quiescent current is typically 10mA when the input-to-output differential exceeds 3V with a full 500mA load, which contributes to reduced power consumption.

Stability and Compensation

Built-in compensation circuitry relaxes the ESR requirements for the output bypass capacitor. Stability is maintained for all ESR values below 3Ω, allowing the use of modern, low-ESR chip capacitors in the design.

Protection Features

The device includes short-circuit and thermal overload protection to safeguard the device and the circuit under fault conditions. It also provides reverse battery protection, 60V input transient protection and mirror image insertion protection, helping to guard against common installation errors and voltage spikes.

Specifications

• Input voltage range: 0V to 26V
• Output voltage: 10V (5% tolerance under all operating conditions)
• Maximum load current: 500mA
• Dropout voltage: typically 500mV at full load
• Quiescent current: typically 10mA at 500mA load with input-to-output differential above 3V
• Package: SOT-223-3, surface-mount
• Width: 3.3, Depth: 1.5, Height: 4.3
• Weight: 0.422 g

Applications

Suitable for designs where the input voltage is only slightly higher than the required output. The regulator is supplied in a compact surface-mount package and is manufactured without antimony or bromine (no Sb/Br), making it a green product.

Choose the Texas Instruments fixed LDO voltage regulator when a stable 10V supply at up to 500mA is required in a compact surface-mount design.