Product category:
Power Supply ICs and Controllers
News Release from: Maxim Integrated Products | Subject: MAX1963 and MAX1976
Edited by the Electronicstalk Editorial
Team on 21 November 2003
Big currents from small LDOs
The MAX1963 and MAX1976 are the world's first and smallest 100mV low-dropout linear regulators to operate from a 1.62V input and deliver a guaranteed 300mA continuous-load current.
The MAX1963 and MAX1976 are the world's first and smallest 100mV low-dropout (LDO) linear regulators that operate from a 1.62V input and deliver a guaranteed 300mA continuous-load current These linear regulators are typically used to power processor curves at 1.5V
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
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The devices have only 17% (typical) efficiency loss when powered from the 1.8V I/O supply compared with 61% using other linear regulators powered from the 3.8V lithium-ion battery.
The MAX1963 and MAX1976 provide very high output-voltage accuracy (+/-1.5%) over all load, line and temperature conditions.
These ICs are available in fixed-output voltages ranging from 0.75 to 3.0V.
Their active-low, open-drain reset output remains asserted for at least 2.2ms (MAX1963) or 70ms (MAX1976) after the output voltage reaches regulation.
The MAX1963 and MAX1976 have an internal PMOS pass transistor so the low 70uA supply current remains independent of load and dropout voltage.
Other features include a logic-controlled shutdown, short-circuit protection, and thermal-overload protection.
The MAX1963 and MAX1976 are available in 6-pin SOT23 and 6-pin, 3 x 3mm TDFN packages.
These devices are screened for the extended-industrial temperature range (-40 to +85C).
Prices start at $0.62 (2500-up, FOB USA).
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