GENERAL DEscriptION

The SGM2209 is a low power, low noise, fast transient response and low dropout voltage linear regulator. It provides -500mA output current capability. The operating input voltage range is from -2.7V to -24V. The adjustable output voltage range is from -1.2V to (-VIN + VDROP).

Other features include logic-controlled shutdown mode, short-circuit current limit and thermal shutdown protection. The SGM2209 has automatic discharge function to discharge VOUT in the disabled status.

The SGM2209 is available in Green TDFN-2×2-6AL, TDFN-3×3-8L and SOT-23-5 packages. It operates over an operating temperature range of -40℃ to +125℃.

FEATURES

• Input Voltage Range: -2.7V to -24V

• Output Voltage Accuracy: ±1% at +25℃

• Fixed Outputs of 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V and 5.0V

• Adjustable Output from -1.2V to (-VIN + VDROP)

• -500mA Output Current

• Low Current: IGND = -1.2mA (TYP) with -500mA Load

• Low Dropout Voltage: -345mV (TYP) at -500mA, at VOUT = -3.0V

• Low Noise:

  10.5μVRMS (TYP) at VOUT = -1.2V

  12μVRMS (TYP) at VOUT = -2.5V

  16μVRMS (TYP) at VOUT = -5.0V

• PSRR: -60dB at 10kHz at VOUT = -2.5V

• Positive or Negative Enable Logic

• Stable with Small 2.2μF Ceramic Output Capacitor

• Low Shutdown Current: -1.1μA (TYP)

• Current Limiting and Thermal Protection

• -40℃ to +125℃ Operating Temperature Range

• Available in Green TDFN-2×2-6AL, TDFN-3×3-8L and SOT-23-5 Packages

APPLICATIONS

Industrial and Medical Equipment

Communications and Infrastructure

Precision Amplifiers

ADC and DAC Circuits