# LD2979 Low Dropout Voltage Regulator

## Features
· Very low dropout voltage: 0.2V (typ. at 50mA load)
· Very low quiescent current: 500µA (typ. at 50mA load)
· Output current: Up to 50mA
· Logic-controlled electronic shutdown (TTL compatible) - SOT23-5L package only
· Output voltages: 2.85V, 3.0V, 3.2V, 3.3V, 3.8V, 5.0V
· Internal current and thermal limit
· Supply voltage rejection: 63dB (typ)
· Stability with only 1µF capacitor
· Temperature range: -25°C to 125°C
· Packages: SOT23-5L, TO-92

## Electrical Characteristics
· Output Voltage (Vout): Varies by model (2.85V-5.0V)
· Line Regulation: 0.028%/V to 0.064%/V
· Quiescent Current (Id): 80µA to 1300µA depending on load
· Dropout Voltage: 6mV to 600mV (depending on current)
· Supply Voltage Rejection (SVR): 63dB

## Ordering Numbers
· SOT23-5L: LD2979M28, LD2979M30, LD2979M32, LD2979M33, LD2979M38, LD2979M50
· TO-92: LD2979Z28, LD2979Z30, LD2979Z32, LD2979Z33, LD2979Z38, LD2979Z50

## Pin Configuration
· SOT23-5L:
- VIN: Input Voltage (Pin 1)
- GND: Ground (Pin 2)
- INHIBIT: Control Switch (ON/OFF) - (Pin 3) - *Must not be left floating, connect to >2V to enable*
- NC: Not Connected (Pin 4)
- VOUT: Output Voltage (Pin 5)
· TO-92: (Refer to datasheet for top/bottom view connections)

## Mechanical Data
· Package dimensions provided in datasheet (TO-92)

## Important Notes
· The INHIBIT pin on the SOT23-5L package must not be left floating.
· The device is available in SOT23-5L and TO-92 packages.