CM6511 200mA Low noise, low voltage drop, negative voltage low power consumption LDO

Overview
The CM6511 series are micropower, low-noise, low-dropout negative voltage regulators capable of delivering a 200 mA output current with a typical dropout voltage of 200 mV. They feature a typical quiescent current of 45 μA during operation and 2.6 μA in shutdown mode, making them ideal for battery-powered applications.

These devices provide low output noise performance. With an external 0.01 μF bypass capacitor, output noise can be reduced to 20 μVrms over the 10 Hz to 100 kHz bandwidth. The CM6511 series operates stably with small ceramic capacitors and remains stable with an output capacitance as low as 4.7 μF.

Internal protection circuitry includes current limiting and thermal shutdown.

The series comprises four product variants: the CM6511-5 offers a fixed –5 V output, while the CM6511-SD, CM6511-BYP, and CM6511 support programmable output voltages based on a –1.24 V reference.

The CM6511-5, CM6511-SD, and CM6511-BYP are supplied in a TSOT23-5 package, while the CM6511 is available in a DFN-8 package. All versions are specified for the –40°C to +125°C operating temperature range.

Features

• Low output noise: 20 μVrms (10 Hz to 100 kHz)
• Low quiescent current: 45 μA
• Low dropout voltage: 200 mV
• Output current: 200 mA
• Fixed output voltage: –5 V
• Wide input voltage range: –4 V to –28 V
• Adjustable output range: –1.24 V to –28 V + VDO
• Shutdown quiescent current: 2.6 μA
• Positive or negative shutdown logic
• Current limit and thermal protection
• Package options: TSOT23-5 (2.9 mm × 1.6 mm) and DFN-8 (3 mm × 3 mm)

Applications

• Battery-powered instruments
• Low-noise regulation for noise-sensitive equipment
• Negative rail supplement for positive voltage regulators

TSOT23-5

DFN8

Product list

High-Precision LDO

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