GENERAL DESCRIPTION

The SGM2231 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 -1.1V to (-VIN +

VDROP).

Other features include logic-controlled shutdown mode,

short-circuit current limit and thermal shutdown

protection. The SGM2231 has automatic discharge

function to quickly discharge VOUT in the disabled status.

The SGM2231 is available in a Green UTDFN-2×2-8CL

package. It operates over an operating temperature

range of -40℃ to +125℃.

FEATURES

● Input Voltage Range: -2.7V to -24V

● Fixed Outputs of -1.1V, -1.2V, -1.5V, -1.8V, -2.5V,

-2.8V, -3.0V, -3.3V and -5.0V

● Adjustable Output from -1.1V to (-VIN + VDROP)

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

● -500mA Output Current

● Low Quiescent Current:

IGND = -47μA (TYP) at No Load

● Low Dropout Voltage:

-230mV (TYP) at -500mA, VOUT = -5.0V

● Low Noise: 10μVRMS (TYP) at VOUT = -1.1V

● Low Shutdown Current: -1.2μA (TYP)

● PSRR: -65dB (TYP) at 10kHz, VOUT = -1.1V

● Current Limiting and Thermal Protection

● Positive or Negative Enable Logic

● Stable with Small Case Size Ceramic Capacitors

● -40℃ to +125℃ Operating Temperature Range

● Available in a Green UTDFN-2×2-8CL Package