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 quickly 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

● 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

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

● Low Quiescent 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

● Current Limiting and Thermal Protection

● With Output Automatic Discharge

● Stable with Small Case Size Ceramic Capacitors

● Low Shutdown Supply Current: -1.1μA (TYP)

● -40℃ to +125℃ Operating Temperature Range

● Available in Green TDFN-2×2-6AL, TDFN-3×3-8L

and SOT-23-5 Packages