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LR1121B - HIGH RIPPLE-REJECTION LDO REGULATOR

Description

The UTC LR1121B is CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low current, low ON-resistance, and high Ripple Rejection.

An ON/OFF circuit enables the output to be turned off, ensuring a long battery life.

Features

  • S.
  • Ultra-Low Supply Current : During Operation: 30μA TYP. During Standby: 0.1μA Typ.
  • Output Voltage: 2.1V ~ 5.5V, Selectable in 0.1 V Steps.
  • High Output Voltage Accuracy: ±2.0%.
  • Low Dropout Voltage: 180 mV Typ. (2.8 V Output Product, IOUT = 100 mA).
  • High Ripple Rejection: 70 dB TYP. (@ 1.0 kHz).
  • High Peak Current Capability: 150 mA Output is Possible (@ VIN ≥ VOUT(S) + 1.0 V).

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Full PDF Text Transcription

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UNISONIC TECHNOLOGIES CO., LTD LR1121B HIGH RIPPLE-REJECTION LDO REGULATOR  DESCRIPTION The UTC LR1121B is CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low current, low ON-resistance, and high Ripple Rejection. An ON/OFF circuit enables the output to be turned off, ensuring a long battery life. a built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-in overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor. The line transient response and load transient of the UTC LR1121B is excellent.  FEATURES * Ultra-Low Supply Current : During Operation: 30μA TYP. During Standby: 0.1μA Typ. * Output Voltage: 2.1V ~ 5.5V, Selectable in 0.1 V Steps.
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