Maker : STMicroelectronics
Part No. : 7915CV

  Datasheet PDF : 7915CV.pdf
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Product Information

L7900 series Negative voltage regulators Feature summary ■ ■ ■ ■ ■ Output current up to 1.5A Output voltages of -5; -6; -8; -12; -15; -18; -20; -24V Thermal overload protection Short circuit protection Output transition SOA protection TO-220 TO-220FP Description The L7900 series of three-terminal negative regulators is available in TO-220, TO-220FP, TO-3 and D2PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation; furthermore, having the same voltage option as the L7800 positive standard series, they are particularly suited for split power supplies. If adequate heat sinking is provided, they can deliver over 1.5A output current. D2PAK TO-3 Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. Schematic diagram www.DataSheet4U.com January 2007 Rev. 11 1/24 www.st.com 24 L7900 series Contents 1 2 3 4 5 6 7 8 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Test circuit ................................................ 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 www.DataSheet4U.com 2/24 L7900 series Pin configuration 1 Figure 1. Pin configuration Pin connections (top view) TO-220 TO220FP D2PAK (Any Type) TO-3 www.DataSheet4U.com 3/24 Maximum ratings L7900 series 2 Table 1. Symbol VI IO PD TSTG TOP Maximum ratings Absolute maximum ratings Parameter DC Input voltage Output current Power dissipation Storage temperature range Operating junction temperature range for VO= 5 to 18V for VO= 20, 24V Value -35 V -40 Internally Limited Internally Limited -65 to 150 0 to 150 °C °C Unit Note: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied Thermal Data Parameter Thermal resistance junction-case Thermal resistance junction-ambient D2PAK 3 62.5 TO-220 3 50 TO-220FP 5 60 TO-3 4 35 Unit °C/W °C/W Table 2. Symbol RthJC RthJA www.DataSheet4U.com 4/24 L7900 series Test circuit 3 Figure 2. Test circuit Test circuit www.DataSheet4U.com 5/24 Electrical characteristics L7900 series 4 Table 3. Symbol VO VO ∆VO(1) ∆VO(1) Id ∆Id ∆VO/∆T eN SVR Vd Isc Electrical characteristics Electrical characteristics of L7905C (refer to the test circuits, TJ = 0 to 125°C, VI = -10V, IO = 500 mA, CI = 2.2 µF, CO = 1 µF unless otherwise specified) Parameter Output voltage Output voltage TJ = 25°C IO = -5 mA to -1 A, PO ≤15 W VI = -8 to -20 V VI = -7 to -25 V, TJ = 25°C VI = -8 to -12 V, TJ = 25°C Load regulation Quiescent current Quiescent current change Output voltage drift Output noise voltage Supply voltage rejection Dropout voltage Short circuit current IO = 5 mA to 1.5 A, TJ = 25°C IO = 250 to 750 mA, TJ = 25°C TJ = 25°C IO = 5 mA to 1 A VI = -8 to -25 V IO = 5 mA B = 10Hz to 100KHz, TJ = 25°C ∆VI = 10 V, f = 120Hz IO = 1 A, TJ = 25°C, ∆VO = 100 mV 54 -0.4 100 60 1.4 2.1 Test conditions Min. -4.8 -4.75 Typ. -5 -5 Max. -5.2 -5.25 100 mV 50 100 mV 50 3 0.5 mA 1.3 mV/°C µV dB V A mA Unit V V Line regulation 1. Load and line regulation are specified at constant junction temperature. Changes in ...

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