XC6604A101ER-G

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

The XC6604A101ER-G is a low voltage input, 1A high speed LDO regulator with adjustable current limit. It operates with an input voltage range of 0.5V to 3.0V and provides a fixed output voltage of 1.0V. The device features ultra-low on-resistance for efficient large current supply at low output voltages. Output voltage accuracy is ±0.015V for outputs below 1.2V. It includes protection circuits such as fold-back current limit, thermal shutdown (TSD), and under-voltage lockout (UVLO). The CE function enables stand-by mode with greatly reduced power consumption.

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

• Ultra-low on-resistance N-ch driver transistor enables efficient high current supply even at low output voltages.
• Adjustable current limit via external resistor connected to the ILIM pin, combined with fold-back short-circuit protection.
• Built-in soft-start circuit reduces inrush current during startup to stabilize the input voltage.
• CE pull-down function maintains stand-by mode when the control pin is left open, minimizing standby current.

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

• Smart phones / Mobile phones
• Digital still cameras / Camcorders
• Note PCs / Tablet PCs
• E-book Readers / Electronic dictionaries
• Wireless LAN

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

Verify the package type USP-6C and the specific ordering suffix ER-G against the manufacturer's official documentation to ensure correct reel quantity and environmental compliance. Confirm that the Type A designation matches the requirement for the internal soft-start function. Cross-reference the laser-trimmed output voltage code '10' to validate the 1.0V nominal setting before finalizing procurement specifications.

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

Select this component for applications requiring stable regulation from very low input voltages down to 0.5V. Ensure sufficient VGS margin between VBIAS and VOUT for optimal dropout performance. Verify that the required current limit setting falls within the adjustable range of 0.5A to 1.3A using the appropriate external resistance on the ILIM pin. Consider the thermal dissipation capabilities of the USP-6C package relative to the expected load current and ambient temperature.

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

This part belongs to the XC6604 series of low voltage input LDO regulators manufactured by Torex Semiconductor. The series is characterized by its ability to operate efficiently at low input/output voltage differentials. The 'A' in the model number indicates it is Type A, which includes a soft-start feature. The '10' denotes the fixed 1.0V output voltage, and 'ER-G' specifies the USP-6C package with halogen-free compliance.

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

XC6604B101ER-G

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

What is the function of the ILIM pin?

The ILIM pin allows for the adjustment of the current limit value by connecting an external resistor. This enables customization of the maximum output current, which can be set between 0.5A and 1.3A.

How does the CE pin behave if left unconnected?

The XC6604A101ER-G features a CE pull-down function. If the CE pin is left open, the IC automatically enters stand-by mode, resulting in significantly reduced power consumption.

What protection mechanisms are included in this regulator?

The device includes a fold-back current limit circuit, thermal shutdown (TSD) circuit, and under-voltage lockout (UVLO) circuit to protect against over-current, overheating, and unstable input conditions.