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TS39301 Datasheet, PDF (1/7 Pages) Taiwan Semiconductor Company, Ltd – 3A Ultra Low Dropout Positive Voltage Regulator | |||
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TS39301/2/3/4
3A Ultra Low Dropout Positive Voltage Regulator
Low Dropout Voltage 0.4V (typ.)
Output Current 3A
Low Quiescent Current
General Description
The TS39301/2/3/4 are 3A ultra low dropout linear voltage regulators that provide low voltage, high current output with
a minimum of external components. The TS39301/2/3/4 offers extremely low dropout (typically 400mV at 3A) and low
quiescent current (typically 36mA at 3A).
The TS39301/2/3/4 is ideal for PC add-in cards that need to convert from standard 3.3V to 2.5V or 2.5V to 1.8V. A
guaranteed maximum dropout voltage of 500mV over all operating conditions allows the TS39301/2/3/4 to provide
2.5V from a supply as low as 3V, and 1.8V from a supply as low as 2.5V. The TS39301/2/3/4 also has fast transient
response for heavy switching applications. The device requires only 47uF of output capacitor to maintain stability and
achieve fast transient response.
On the TS39301/2/3/4, the enable pin may be tied to input voltage if it is not required for enable control. This series
are offered in 5-pin TO-220, TO-263 package.
Features
ï² Dropout voltage typically 0.4V @Io=3A
ï² Output current up to 3A
ï² Low ground current
ï² Current limiting and Thermal shutdown
ï² Extremely fast transient response
ï² Reversed leakage protection
ï² Reverse battery protection
ï² TTL/CMOS compatible enable pin
ï² Error flag output (TS39301 only)
ï² Adjustable version (TS39302 only)
ï² Output voltage sense (TS39303 / 4 only)
Applications
ï² Battery power equipment
ï² LDO linear regulator for PC add-in cards
ï² PowerPCTM power supplies
ï² Multimedia and PC processor supplies
Ordering Information
Part No.
Operating Temp. Package
TS39301CZ5xx
TS39302CZ5
TS39303CZ5xx
TO-220-5L
TS39304CZ5xx
TS39301CM5xx
-40 ~ +125 oC
TS39302CM5
TS39303CM5xx
TO-263-5L
TS39304CM5xx
Note: Where xx denotes voltage option, available are
50 = 5.0V
33 = 3.3V
25 = 2.5V
18 = 1.8V
ï² High efficiency linear power supplies
ï² High efficiency post regulator for switching supply
ï² Low-voltage microcontrollers and digital logic
ï² SMPS post regulator
TS39301/2/3/4
1-7
2005/12 rev. A
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