GENERAL DEscriptION
The SGM2048 is a low noise, high PSRR, low dropout voltage linear regulator. It is capable of supplying 1A output current with typical dropout voltage of only 150mV. The operating input voltage range is from 2.2V to 7V. The SGM2048 is available in fixed output voltage versions and an adjustable version that allows the output voltage range from 0.8V to 6V.
Other features include logic-controlled shutdown mode, short-circuit current limit and thermal shutdown protection. The SGM2048 has automatic discharge function to discharge VOUT in the disabled status.
The SGM2048 is available in a Green TDFN-3×3-8CL package. It operates over an operating temperature range of -40℃ to +125℃.
PIN CONFIGURATIONS
FEATURES
Operating Input Voltage Range: 2.2V to 7V
Fixed Output Voltages: 1.2V, 1.8V, 2.8V, 3.0V, 3.3V, 5.0V
Adjustable Output from 0.8V to 6V
Output Voltage Accuracy: ±1% at +25℃
Low Dropout Voltage: 150mV (TYP) at 1A
Low Noise: 30μVRMS (TYP)
Power Supply Rejection Ratio at VOUT = 3.3V:
75dB at 1kHz
65dB at 100kHz
55dB at 1MHz
Current Limiting and Thermal Protection
Excellent Load and Line Transient Responses
With Output Automatic Discharge
Stable with Small Case Size Ceramic Capacitors
-40℃ to +125℃ Operating Temperature Range
Available in a Green TDFN-3×3-8CL Package
APPLICATIONS
Wireless basestation
PLL/VCO/RF Circuit
Audio E