AP7333-10SRG-7

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The AP7333-10SRG-7 is a fixed-output low dropout linear regulator manufactured by Diodes Incorporated. It provides a stable 1.0V output with a maximum continuous load current of 300mA. The device operates within an input voltage range of 2V to 6V and features a typical quiescent current of 65µA across the full load spectrum. It utilizes SOT23R surface-mount packaging and includes built-in protections such as current limiting, thermal shutdown, and short-circuit protection.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Ultra-fast start-up time of approximately 80µs for rapid power delivery
• Low dropout voltage performance of 300mV typical at full load
• High power supply rejection ratio of 65dB at 100Hz
• Stable operation with small ceramic capacitors as low as 1µF

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery powered equipment
• Wireless LAN cards
• XDSL routers
• Desktop and notebook computers
• Mouse and keyboards

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific package variant (SOT23R) and output voltage accuracy against project requirements. Confirm compliance with RoHS3 directives and lead-free finish specifications. Ensure adequate PCB copper area for thermal dissipation in the SOT23R footprint. Validate that the selected input and output capacitor values meet the stability criteria outlined in the datasheet application notes.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 1.0V rail is required for low-power digital logic or RF circuits. The low quiescent current makes it suitable for battery-operated devices where standby power consumption is critical. Consider the fast transient response for applications with rapidly changing load profiles, such as GSM baseband circuits. Ensure the input voltage remains above the minimum threshold while accounting for dropout voltage under maximum load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the AP7333 family of 300mA low dropout regulators from Diodes Incorporated. The series offers various fixed output voltages ranging from 1.0V to 3.3V. The 'SR' suffix indicates the SOT23R package variant, which differs in pinout orientation compared to the standard SOT23 package. All variants share identical electrical characteristics and protection features.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

AP7333-10SA-7

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

What is the minimum recommended output capacitance for stability?

The AP7333-10SRG-7 is stable with a minimum output capacitance of 1µF ceramic capacitor.

How does the device protect against overheating?

Thermal shutdown protection disables the output when the junction temperature reaches approximately +140°C and re-enables it when the temperature drops to approximately +125°C.