AP7333-15SRG-7

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

The AP7333-15SRG-7 is a fixed-output low dropout linear regulator manufactured by Diodes Incorporated. It provides a stable 1.5V output with a maximum continuous current of 300mA. The device operates within an input voltage range of 2V to 6V and maintains a typical quiescent current of 65µA across the full load spectrum. It features a fast start-up time of 80µs and offers excellent line and load transient response. The regulator includes built-in current limit, short circuit, and thermal shutdown protections. It is housed in a space-saving SOT23R-3 package.

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

• Ultra-fast start-up time enables rapid power delivery without sacrificing low ground current.
• Stable operation guaranteed with small-value ceramic output capacitors having low ESR.
• Integrated protection mechanisms include current limiting, short-circuit clamping, and thermal shutdown.
• Low quiescent current consumption extends battery life in portable electronic devices.

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

• XDSL Routers
• Wireless LAN Cards
• Battery Powered Equipments

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

Verify that the ordering suffix SRG-7 corresponds to the SOT23R package, Green molding compound, and Tape & Reel packaging format as defined in the manufacturer's official documentation. Confirm the specific output voltage code matches the required 1.5V specification for the target application design.

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

Select this component when a compact surface-mount solution is required for low-power applications. Ensure the input voltage remains within the 2V to 6V operational range. Verify that the PCB layout allows for close placement of the recommended 1µF ceramic output capacitor to maintain stability and optimal transient performance.

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

This part belongs to the AP7333 series of 300mA low dropout regulators from Diodes Incorporated. The series offers various fixed output voltages ranging from 1.0V to 3.3V. It is designed for portable electronics requiring efficient power management and fast dynamic response under varying load conditions.

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

Compatible substitutes within the same family include AP7333-15SA-7 (SOT23 package) and other AP7333 variants with different fixed output voltages such as AP7333-18SRG-7 or AP7333-25SRG-7, provided the electrical requirements match the system design.

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

What is the minimum load requirement for the AP7333-15SRG-7?

No minimum load is required to keep the device stable. The regulator remains stable and regulated even under no-load conditions.

How does the device protect against overheating?

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