MP2002A 1.35-6.5V, 500mA Linear Regulator QFN-8

MP2002A 1.35-6.5V, 500mA Linear Regulator QFN-8

The MP2002A is a low-current, low-dropout linear regulator operating over a single input supply between 1.35V to 6.5V.

Key Specifications

Features

• Power Good Open-Drain Output
• Operates from 1.35V to 6.5V Input
• Low 300mV Dropout at 500mA Output
• Stable with Very Small Ceramic Capacitors
• 2% Feedback Reference
• Adjustable Output Voltage Option from 0.5V to 5V Using an External Resistor Divider
• Better Than 0.001%/mA Load Regulation
• Low 100μA Ground Current
• Internal Thermal Protection
• Current Limit Protection

Typical Application Circuit

Applications

• Low-Current Regulators
• Battery-Powered Systems

Design Notes

• Dissipation is (VIN − VOUT) × IOUT. Check it against the package thermal resistance at the real ambient temperature before committing to the full rated current.
• Some low-noise LDOs require a minimum output capacitor ESR for loop stability — read the stability section before substituting a ceramic part.
• Add a bypass capacitor on the reference pin where provided; it sets the output noise floor.
• PSRR falls as the input-to-output differential shrinks, so headroom matters at low VIN.

Common Questions