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Specifically designed for data storage applications, this device integrates two voltage regulators, each one able to supply 1A and it is assembled in PPAK, in SPAK and in a new 8-PIN surface mounting package named DFN 5x6mm at 8 pins. The first regulator block supplies 1.5V,1.8V, 2.5V, 2.8V, 3.0V, 3.3V depending on the chosen version. The second one may be fixed to the same values or adjustable from 1.25V to VI -VDROP that could power several kind of different micro-controllers. Both outputs are current limited and over temperature protected. It is worth underlining the very good thermal performance of the packages SPAK and DFN with only 2°C/W of Thermal Resistance Junction to Case.
Applications are HARD DISK, CD/DVD-ROM, CD/DVD-R/RW, COMBO (DVD-ROM+CD-R/RW).
ST2L05 Maximum Ratings
Symbol
Parameter
Value
Unit
VI
Operating Input Voltage
10
V
PD
Power Dissipation
Internally Limited
IOSH
Short Circuit Output Current - 3.3 V and adjustable output
Internally Limited
Top
Operating Junction Temperature Range
0 to 150
Tstg
Storage Temperature Range(*)
-65 to 150
TLEAD
Lead Temperature (Soldering) 10 Sec.
260
(*) Storage temperatures > 125°C are only acceptable if the Dual Regulator is soldered to a PCBA. Absolute Maximum Ratings are those beyond which damage to the device may occur. Functional operation under these condition is not im-plied.
ST2L05 Features
· VO1 = 1.5, 1.8, 2.5, 2.8, 3.0, 3.3V FIXED · VO2 = 1.5, 1.8, 2.5, 2.8, 3.0, 3.3V FIXED OR ADJUSTABLE FROM 1.25 TO VI- VDROP · GUARANTEED OUTPUT1 CURRENT: 1A · GUARANTEED OUTPUT2 CURRENT: 1A · ± 2% OUTPUT TOLERANCE (AT 25°C) · ± 3% OUTPUT TOLERANCE OVER TEMP. · TYPICAL DROPOUT 1.1V (IO1 = IO2 = 1A) · INTERNAL POWER AND THERMAL LIMIT · STABLE WITH LOW ESR OUTPUT CAPACITOR · OPERATING TEMPERATURE RANGE:0°C TO 125°C · VERY LOW QUIESCENT CURRENT: 7mA MAX OVER TEMP. · AVAILABLE IN PPAK, SPAK AND IN DFN 5x6mm PACKAGE