S5JLM2931 SECOS | Alldatasheet

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Technical content

Features

  • 60V Load Dump Protection * Internal Current Limiting With Thermal Shutdown * Temporary Mirror-Image Protection * -50V Reverse Transient Protection The S5JLM2931 positive voltage regulator features a very low quiescent current of 1mA or less when supplying 10mA loads. This unique characteristic and the extremely low input-output differential required for proper regulation (0.2V for output current of 10mA) make the S5JLM2931 the ideal regulator for standbe power system. Applications include memory standby circuits, COMS and other low power processor power supplies as well as systems demanding as much as 100mA of output current. Designed originally for automotive applications, the S5JLM2931 and all regulated circuitry are protected from reverse battery installations or 2 battery jumps. During line transients, such as a load dump (60V) when the input voltage to the regulator can momentarily exceed the specified max. operating voltage, the regulator will automatically shut down to protect both internal circuits and the load. The S5JLM2931 cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

Description

01-Jun-2002 Rev. A Page 1 of 4 http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual R o H S C o m p l i a n t P r o d u c t Typical Applications VOUT=VREF*(1+R2/R1)+IADJ*R2 S5JLM2931 A 6.35 6.73 G 0.45 0.60 B 5.21 5.46 H 2.20 2.40 C 9.40 10.20 J 0.46 0.58 D 2.40 3.00 K 0 0.15 P 1.27 REF. L 0.90 1.50 S 0.50 0.80 M 5.40 5.59 Millimeter Millimeter

Parameter Symbol Ratings Unit V mA V C VI VI(T) RqJA -15~40 -50~60 -40~+125 100 -60~+150 o Resistance Junction-Ambient IO TSTG Tj 102 C o C o Absolute Maximum Ratings http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 2 of 4 Elektronische Bauelemente S5JLM2931 100mA CMOS Low Dropout Adjustable Voltage Regulator Definition of Terms Dropout Voltage: The input-output voltage differential at which the circuit ceases to regulate against further reduction in input voltage. Measured when the output voltage has dropped 100mV from the normal voltage obtained at 14V input, dropout voltage is dependent upon load current and junction temperature. Input Voltage: The DC voltage applied to the input terminals with respect to ground. Input-Output Differential: The Voltage difference between the unregulated input voltage and the regulated output voltage for which the regulator will operate. Line Regulation: The change in output voltage for a change in the input voltage. The measurement is made under conditions of low dissipation or by usung pulse techniques such that the average chip temperature is not significantly affected. Load Regulation: The change in output voltage for a change in load current at constant chip temperature. Long Term Stability: Output voltage stability under accelerated life-test conditions after 1000 hours with max. rate voltage and junction temperature. Output Noise Voltage: The rms AC voltage at the output, with constant load and no input ripple, measured over a specified frequency range. Quiescent Current: That part of the positive input current that does not contribute to the positive load current. The regulator ground lead current. Ripple Rejection: The ratio of the peak-of-peak input ripple voltage to the peak-of-peak output ripple voltage at a specified frequency. of

Electrical Characteristics

VIN=14V, VOUT=3V, IO=10mA, TJ=25:, Ci=0.1uF, Co=100uF, R1=27k (unless otherwise specified) Parameter Symbol Conditions Min Typ Max Unit IO=10mA 1.14 1.20 12.6 V Reference voltage VREF IO100mA, -40: TJ 125: Measure from VOUT to Adj Pin 1.08 1.32 V Output voltage VOUT 3 24 V Line regulation RegLine VOUT+0.6V VIN 26V - - 1.5 mV/V Load regulation RegLoad 5mA IO 100mA - - 1.0 % IO=10mA - - 1.0 IO=100mA - 6 - Consumption current IB Output is “off” (Vth(OI)=2.5V) - - 1.0 mA Adjustment current IAdj - 0.2 - uA Dropout voltage Vds IO=10mA IO=100mA - - 0.2 0.6 V Output Impedance ZO IO=1mA, f=10Hz~100kHz - 40 - m/V Noise voltage on output Vn f=10Hz~100kHz - 140 - mV/V Pulse-smoothing ratio RR f=120Hz 0.1 - - %/V Temporary unstability of output voltage S - 0.4 - %/1000hr Maximum input voltage threshold Vth(OV) 26 - 40 V Output voltage at negative input voltage -VO VIN=-15V -0.3 - - V Output is “ON” - - 1.9 Voltage threshold of disconnection output Vth(OI) Output is “OFF” 2.5 - - V Disconnection output current Ith(OI) Vth(OI)=2.5V - - 50 uA

01-Jun-2002 Rev. A Page 3 of 4 ht tp://www.SeCoSGmbH.com/ A ny changing of specification will not be informed individual Elektronische Bauelemente S5JLM2931 100mA CMOS Low Dropout Adjustable Voltage Regulator Typical Performance Characteristics

01-Jun-2002 Rev. A Page 4 of 4 http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual S5JLM2931 100mA CMOS Low Dropout Adjustable Voltage RegulatorElektronische Bauelemente