LD2980ABM25TR| Datasheet

LD2980ABM25TR, LD2980ABM30TR, LD2980ABM33TR, LD2980ABM36TR, LD2980ABM50TR, LD2980ABU25TR, LD2980ABU33TR, LD2980ABU50TR, LD2980ABXX18, LD2980ABXX25, LD2980ABXX30, LD2980ABXX33, LD2980ABXX36, LD2980ABXX50, LD2980CM18TR, LD2980CM25TR, LD2980CM33TR, LD2980CM36TR, LD2980CM50TR, LD2980CU18TR, LD2980CU25TR, LD2980CU50TR, LD2980CXX18, LD2980CXX25, LD2980CXX33, LD2980CXX36, LD2980CXX50

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LD2980ABxx LD2980Cxx
Ultra low drop voltage regulators compatible with low ESR inhibit output capacitors
Features

Stable with low ESR ceramic capacitors Ultra low dropout voltage (0.12 V typ. at 50 mA load, 7 mV typ. at 1 mA load) Very low quiescent current (80 uA typ. at no load in on mode; max 1 uA in off mode) Guaranteed output current up to 50 mA Logic-controlled electronic shutdown Output voltage of 1.8; 2.5; 3.0; 3.3; 3.6; 5.0 V Internal current and thermal limit 0.5% Tolerance output voltage available (A version) Output low noise voltage 160 uVRMS Temperature range: -40 to 125 C Smallest package SOT23-5L and SOT-89 Fast dynamic response to line and load changes systems. The quiescent current in sleep mode is less than 1 uA when the INHIBIT pin is pulled low. A shutdown logic control function is available on pin n 3 (TTL compatible). This means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. The LD2980 is designed to work with low ESR ceramic capacitors. Typical applications are cellular phone, laptop computer, perso
nal digital assistant (PDA), personal stereo, camcorder and camera.
SOT23-5L SOT-89

Description
The low drop-voltage and the ultra low quiescent current make them suitable for low noise, low power applications and in battery powered Table 1. Device summary

Order codes AB Version SOT23-5L SOT-89 SOT23-5L LD2980CM18TR LD2980ABM25TR LD2980ABM30TR LD2980ABM33TR LD2980ABM36TR LD2980ABM50TR
1. Available on request.

C Version Output voltage SOT-89 LD2980CU18TR LD2980CU25TR LD2980CU30TR
(1) (1)

1.8 V 2.5 V 3.0 V 3.3 V

LD2980ABU25TR LD2980ABU30TR

(1) (1)

LD2980CM25TR LD2980CM30TR
(1)

LD2980ABU33TR LD2980ABU36TR (1) LD2980ABU50TR

LD2980CM33TR LD2980CM36TR LD2980CM50TR LD2980CU36TR (1) LD2980CU50TR

3.6 V 5.0 V

February 2008

Rev 16

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