ST1L04PT-R ,Low quiescent current voltage regulatorElectrical characteristics . . . . . 54 Typical characteristics . . . . . . . 6® 5 ECOPAC ..
ST1L05APU33R ,Very low quiescent BiCMOS voltage regulatorapplications such as HDDs, where it can supply 3.3 V required by read channel and memory • Enable f ..
ST1L05CPU33R ,Very low quiescent BiCMOS voltage regulatorElectrical characteristics . . . . . 95 Typical characteristics . . . . . . 146 Applicati ..
ST1L05PU25R ,Very low quiescent BiCMOS voltage regulatorFeatures650 µA over the entire allowed junction temperature range. The ST1L05 is stable with low • ..
ST-1MLBR2 , Photo transistors
ST1S03 ,1.5A, 1.5 MHZ ADJUSTABLE, STEP-DOWN SWITCHING REGULATOR IN DFN6ST1S031.5A, 1.5 MHZ ADJUSTABLE,STEP-DOWN SWITCHING REGULATOR IN DFN6 STEP-DOWN CURRENT MODE PWM ( ..
STK7408T ,SW REGULATOR IC STK7400 SERIES FIXED OSCILLATING TYPE
STK750-010 ,Chopper Regulator using MOS FET with Multi-Scan Support(1A Output Current)Ordering number : EN4421OverviewThese days, the variety of horizontal frequencies outputfrom person ..
STK7508P , Advanced Power MOSFET
STK752 ,hybridge sip 9 pin
STK752. ,hybridge sip 9 pin
STK7561A , OUTPUT TYPE SECONDARY REGULATOR FOR OFFICE AUTOMATION EQIPMENT
ST1L04PT-R
Low quiescent current voltage regulator
DocID11194 Rev 2 1/17
ST1L04Low quiescent current voltage regulator
Datasheet - production data
Features Adjustable output voltage from 0.8 V to VI -VD Internal reference voltage Accuracy ± 2% at 25 °C Output current capability: 1 A minimum Very low quiescent current: max. 3 mA over
the whole temperature range Maximum dropout 1 V @ IO = 1 A Stable with low ESR ceramic capacitors only Thermal shutdown protection with hysteresis Overcurrent protection Operating junction temperature range: from 0
to 125 °C
DescriptionThe ST1L04 is a low drop adjustable linear
voltage regulator, which supplies up to 1 A output
current. The output voltage can be as low as 0.8
V. The quiescent current is controlled and
maintained well below 3 mA over the whole
allowed junction temperature range. The ST1L04
is stable with low ESR output ceramic capacitors
only. Internal protection circuitry includes thermal
protection with hysteresis and overcurrent
limiting. The ST1L04 is especially suitable for
applications requiring low voltage outputs from
low voltage inputs. Typical applications for this
product are: notebook PCs, low voltage ASIC,
VID power supplies and low cost post regulation
for 3.3 V output voltage switching regulators.
Figure 1. Schematic diagram
Table 1. Device summary
Contents ST1L042/17 DocID11194 Rev 2
Contents Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 ECOPACK® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
DocID11194 Rev 2 3/17
ST1L04 Pin description
1 Pin description
Figure 2. Pin connection (top view)
Figure 3. Typical application schematicThe adjustable output voltage is set by a resistor divider connected between VO and GND
with its centre tap connected to ADJ. The voltage divider resistors are: R1 connected
between VO and ADJ and R2 connected between ADJ and GND. VO is given by VREF, R1,
R2, IADJ, as follows:
VO=VREF(1+R1/R2)+IADJR1
since IADJ is very small and stable, it can be ignored and the output voltage can be simply
calculated as follows:
VO=VREF(1+R1/R2)
Table 2. Pin description
Maximum ratings ST1L044/17 DocID11194 Rev 2
2 Maximum ratingsNote: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied.
Table 3. Absolute maximum ratings
Table 4. Thermal data
DocID11194 Rev 2 5/17
ST1L04 Electrical characteristics
3 Electrical characteristicsRefer to the typical application schematic, VIN from 2.9 to 5.5 V, IO from 10 mA to 1 A, CIN =
4.7 µF, COUT = 4.7 µF, Tj = 0 to 125 °C, unless otherwise specified. TJ = 25 °C unless
otherwise specified.
Table 5. Electrical characteristics This parameter is the minimum input-to-output differential voltage required to maintain 1% regulation with respect to the
VO nominal value. As to VO between 0.8 V and 1.8 V included, the Vd value is overridden by the minimum operating input
voltage. Guaranteed by design. Not tested in production.
