IXD1209F252MR-G

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

The IXD1209F252MR-G is a high-speed low-dropout (LDO) voltage regulator manufactured by Zilog. It provides a fixed output voltage of 2.5 V with ±2% accuracy and supports an input voltage range up to 10 V. The device delivers a maximum output current of 300 mA, featuring a dropout voltage of 60 mV at 30 mA and 0.20 V at 100 mA. It operates within an ambient temperature range of -40°C to +85°C and includes ON/OFF control functionality via the CE pin. The regulator utilizes a CMOS process and is housed in a SOT-25 package.

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

• Integrates ON/OFF control capability to minimize power consumption during standby modes.
• Compatible with low ESR ceramic capacitors for stable operation under significant load fluctuations.
• Includes foldback current limiting circuitry that functions as short-circuit protection.

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

• Mobile phones
• Cameras and VCRs
• Various portable equipment
• Reference voltage source

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

Verify the specific suffix 'MR-G' corresponds to the SOT-25 package configuration and RoHS compliance status. Confirm the 'F' type designation indicates the correct active-high logic without pull-down resistors on the enable pin. Ensure the ordering code matches the required 2.5 V output specification before finalizing procurement.

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

Select this component when a fixed 2.5 V supply is required with high ripple rejection and low quiescent current. The 300 mA output capability suits applications demanding higher transient loads compared to standard 150 mA variants. Verify that the system input voltage remains within the 10 V maximum limit and that the thermal dissipation requirements fit the SOT-25 package constraints.

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

This part belongs to the IXD1209/12 series of highly precise, low-noise positive voltage LDO regulators. The series is manufactured using CMOS processes and features adjustable or fixed output voltages. The IXD1209 variant specifically supports up to 300 mA output current, distinguishing it from lower-current family members.

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

Public confirmed substitute part numbers are not available in the provided documentation.

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

What is the logic state of the CE pin for the IXD1209F type?

For Type F devices, the CE pin is Active High with no built-in pull-down resistor. The IC turns ON when the CE pin is HIGH and OFF when LOW.

How does the current limiter protect the device?

The device uses a combination of a fixed current limiter and a foldback circuit. When the load current reaches the limit, the output voltage drops, further decreasing the output current to protect against shorts.