- 1%, room temperature voltage accuracy
- Stable with ceramic capacitors
- Logic control enabled
- Noiseless bypass capacitors are required
- Thermal overload and short circuit protection
illustrate
The LP3990 regulator is designed to meet the requirements of portable, battery-powered, low-noise, low-quiescent current systems. The LP3990 will deliver up to 150mA of load current from a low input voltage of 2V to a 0.8V output. When switching the logic signal through the enable pin when entering shutdown mode, the power dissipation is reduced to almost zero.
The LP3990 is designed to be space-stable with small ceramic capacitors up to 1.0μF.
Performance is specified as a junction temperature range of -40°C to 125°C.
For output voltages higher than 0.8V, 1.2, 1.35V, 1.5V, 1.8V, 2.5V, 2.8V, 3.3V or contact your local NSC sales office.
Main specifications
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Input voltage range
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2.0 to 6.0V
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Output voltage range
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0.8 to 3.3V
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Output current
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150 mAh
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Output Stable - Capacitor
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1.0UF
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Almost zeroIQ (Disable)
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Very low IQ（Enabled)
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43uA
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Low output noise
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150uVRMS
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PSRR
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55 dB at 1kHz
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Quick start
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105us
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apply
- Cellular phones
- Handheld information appliances
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