ST1L02PM33R, ST1L02PU18R, ST1L02PU25R, ST1L02PU33R, ST1L02SPUR, ST1L02XX, ST1L02XX18, ST1L02XX25, ST1L02XX33

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ST1L02xx
Very low quiescent BiCMOS voltage regulator
Features

Fixed output voltage: 1.8 V, 2.5 V, 3.3 V (1.5 V, under customer request) Output voltage tolerance: 2% at 25 C Output current capability: 1 A minimum Very low quiescent current: max 500 uA over temperature range Typ. dropout 0.7 V (@ IO =1 A) Stable with low ESR ceramic capacitors Available with and without the external output voltage sense pin Thermal shutdown protection with hysteresis Over current protection Operating junction temperature range: from 0 to 125 C whole allowed junction temperature range. The ST1L02xx is stable with low ESR output ceramic capacitors. Internal protection circuitry includes thermal protection with hysteresis and over current limiting. The ST1L02xx is especially suitable for Data Storage applications such as HDDs, where can be used to supply the Read Channel and Memory Chips requiring 3.3 V. The regulator is available in the small and thin DFN6 (3x3 mm) package.
DFN6 (3x3 mm)

Description
The ST1L02xx is a low drop linear voltage regulator capable to supply up to 1 A output current. The output voltage is fixed to 3.3 V, but under customer request, it's possible to have also 1.5 V, 1.8 V and 2.5 V. Thanks to the BiCMOS technology, the quiescent current is well controlled and maintained below 650 uA over the Table 1. Device summary
Part number ST1L02xx18 ST1L02xx25 ST1L02xx ST1L02xx18 ST1L02xx25 ST1L02xx33 ST1L02xx
1. Only 3.3V

Order code ST1L02PM18R ST1L02PM25R ST1L02PMR
(1)

Package DFN6 (3x3 mm) DFN6 (3x3 mm) DFN6 (3x3 mm) DFN6D (3x3 mm) DFN6D (3x3 mm) DFN6D (3x3 mm) DFN6D (3x3 mm)

ST1L02PU18R ST1L02PU25R ST1L02PU33R ST1L02PUR
(1)

September 2007

Rev. 7

1/19
www.st.com 19

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ST1L02PM33R DATASHEET