The MSKSEMI RT9193-33GB-MS is a high-accuracy, low-noise low-dropout (LDO) linear voltage regulator designed to provide stable 3.3V power for electronic circuits. With an output current of up to 300mA, it is suitable for portable electronics, wireless communication devices, and battery-powered applications that require efficient and reliable voltage regulation.

Built using CMOS technology, the RT9193 series integrates a fixed voltage reference, error correction circuit, current limiting, phase compensation, and a low-resistance MOSFET. These features support low dropout performance, high ripple rejection, low output noise, and fast transient response.

The regulator supports ceramic output capacitors, helping reduce PCB space and component costs. Its chip-enable (CE) function allows the output to be switched off when not required, reducing typical shutdown current to just 1µA. Integrated overcurrent and short-circuit protection further enhance operating reliability.

Housed in a compact SOT-23-5 package, the RT9193-33GB-MS is an excellent choice for space-constrained electronic designs requiring a stable 3.3V supply.

Key Features

• Fixed Output Voltage: Provides a regulated 3.3V output.

• Maximum Output Current: Supports loads up to 300mA.

• High Output Accuracy: Typical output voltage accuracy of ±2.0%.

• Low Quiescent Current: Typical operating current of 70µA.

• Ultra-Low Shutdown Current: Typical current of 1µA when disabled.

• Low-Noise Performance: Suitable for noise-sensitive electronic circuits.

• Fast Transient Response: Handles changes in load current efficiently.

• Integrated Protection: Includes overcurrent and load short-circuit protection.

• Enable Control: Allows output shutdown through the CE pin.

• Ceramic Capacitor Compatibility: Supports compact capacitor selection.

• Compact Package: SOT-23-5 for space-efficient PCB layouts.

Applications

• Smartphones and mobile phones

• Bluetooth and RF communication devices

• Digital cameras and camcorders

• Portable consumer electronics

• Battery-powered equipment

• Embedded electronic systems

• Low-power control circuits

• Noise-sensitive power supply applications

Product Specifications