DatasheetsPDF.com

L4915

STMicroelectronics
Part Number L4915
Manufacturer STMicroelectronics
Description ADJUSTABLE VOLTAGE REGULATOR PLUS FILTER
Published Mar 22, 2005
Detailed Description L4915 ADJUSTABLE VOLTAGE REGULATOR PLUS FILTER . . . . . . . . PRELIMINARY DATA OUTPUT VOLTAGE ADJUSTABLE FROM 4 TO 1...
Datasheet PDF File L4915 PDF File

L4915
L4915

Overview
L4915 ADJUSTABLE VOLTAGE REGULATOR PLUS FILTER .
.
.
.
.
.
.
.
PRELIMINARY DATA OUTPUT VOLTAGE ADJUSTABLE FROM 4 TO 11V HIGH OUTPUT CURRENT (up to 250mA) HIGH RIPPLE REJECTION HIGH LOAD REGULATION HIGH LINE REGULATION SHORT CIRCUIT PROTECTION THERMAL SHUT DOWN WITH HYSTERESIS DUMP PROTECTION DESCRIPTION This circuit combines both a filter and a voltage regulator in order to provide a high ripple rejection over a wide input voltage range.
A supervisor low-pass loop of the element prevents the output transistor from saturation at low input voltage.
The non linear behaviour of this control circuitry allows a fast settling of the filter.
PIN CONNECTION POWER MINIDIP ORDERING NUMBER : L4915 June1993 1/7 L4915 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Vi Vi IO Ptot Tstg Parameter Peak Input Voltage (300 ms) DC Input Voltage Output Current Power Dissipation Storage and Junction Temperature Value 40 28 Internally Limited Internally Limited – 40 to 150 Unit V V °C THERMAL DATA Symbol Rth j-amb R th j-pins Parameter Thermal Resistance Junction-ambient Thermal Resistance Junction-pins Max.
Max.
Value 80 20 Unit °C/W °C/W ELECTRICAL CHARACTERISTICS (Tamb = 25oC; Vi = 13.
5 V, VO = 8.
5V, circuit of Fig.
1, unless otherwise specified) Symbol Vi Vo ∆VI/O ∆ VO ∆ Vo ∆ Vo Vref Iq ∆Iq IAD 2/7 Parameter Input Voltage Output Voltage Controlled Input-output Dropout Voltage Line Regulation Load Regulation Load Regulation (filter mode) Internal Voltage Reference Quiescent Current Quiescent Current Change Adjust Input Current Test Conditions Vi = 6 to 18V, Io = 5 to 150mA Io = 5 to 150mA, Vi = 6 to 10V Vi = 12 to 18V, Io = 10mA Io = 5 to 250mA, ton = 30µs, toff = ≥ 1ms Vi = 8.
5V, Io = 5 to 150mA ton = 30µs, toff =≥ 1ms Io = 5 mA Vi = 6 to 18V, Io = 5 to 150mA Min.
4 1.
6 1 50 150 2.
5 1 0.
05 40 Typ.
Max.
20 11 2.
1 20 100 250 Unit V V V mV mV mV V mA mA nA 2 L4915 ELECTRICAL CHARACTERISTICS (continued) (Tamb = 25oC; Vi = 13.
5 V, VO = 8.
5V, circuit of Fig.
1, unless otherwise s...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)