L1923 Datasheet | Unisonic Technologies

ESCRIPTION 4 5 2 3 The UTC L1923 is a low supply current, low dropout linear regulator. It is operating at 2.5V - 5.5V. The supply current is as low as 55μA in the no- load condition. In the shutdown mode, the maximum supply current is less than 1μA. A built-in over-temperature protection circuit is designed to protect the device from being damaged by thermal overload. The over-current protection limit is set at 800m A (TYP.) The UTC L1923 can be operated on the following two modes. When the SET pin is connected to ground, the output of L1923 is a pre-set value and the external ponents are not needed to decide the output voltage. When an output other than the preset value is needed, two external resistors should be used as voltage dividers and then the output voltage is decided by the resistor ratio. The UTC L1923 is generally used in notebook puters, cellular phones, PDAs, digital still camera and video recorders and other hand-held devices. SOT-25 - Features - Low No-Load Supply Current: 90µA - Guaranteed 500m A Output Current - Dropout Voltage is 200m V @ 250m A Load - OTP(Over-Temperature Protection) and Short-Circuit Protection - Two Modes Of Operation: Fixed Mode：3.3V，3.5V，3.9V Adjustable Mode: 1.25V - 5.5V - Maximum Supply Current In Shutdown Mode is Less than 1µA - Low Output Noise at 238µVRMS - Stability with Lost Cost Ceramic Capacitors - ORDERING INFORMATION Ordering Number Package L1923G-xx-AF5-R SOT-25 xx: Output Voltage, refer to Marking Information. L1923G-xx-AF5-R (1)Packing Type (2)Package Type (3)Output Voltage Code Packing Tape Reel Note: (1) R: Tape Reel (2) AF5: SOT-25 (3) xx: Refer to Marking Information (4) G: Halogen Free .. (4)Halogen Free .unisonic..tw Copyright © 2010 Unisonic Technologies Co., Ltd 1 of 7 QW-R502-440.b - MARKING INFORMATION PACKAGE VOLTAGE CODE 33:3.3V SOT-25 35:3.5V 39:3.9V Preliminary CMOS...