www.fairchildsemi.com KA317L 3-Terminal 0.1A Positive Adjustable Regulator Features Description • • • • • • The KA317L is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 100mA over an output voltage range of 1 .2V to 37V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. Output Current in Excess of 100mA Output Adjustable Between 1.2V and 37V Internal Thermal Overload Protection Internal Short Circuit Current-Limiting Output Transistor Safe Area Compensation Floating Operation For High Voltage Applications TO-92 1 1. Adj 2. Output 3. Input Internal Block Diagram Vin Input 3 + - Voltage Reference Protection Circuitry Rlimit 2 Vo Output 1 Vadj Rev. 1.0.3 ©2002 Fairchild Semiconductor Corporation KA317L Absolute Maximum Ratings Parameter Symbol Input-Output Voltage Differential Value Unit V I - VO 40 V Power Dissipation PD Internally limited W Operating Junction Temperature Range Tj 0 ~ +125 °C TSTG -65 ~+125 °C Storage Temperature Range Electrical Characteristics (VI - VO = 5V, IO = 40mA, 0°C ≤ TJ ≤ +125°C, PDMAX = 625mW, unless otherwise specified) Parameter *Line Regulation *Load Regulation Symbol Rline Rloal Conditions Min. Typ. Max. Unit TA = +25°C 3V ≤ VI − VO ≤ 40V - 0.01 0.04 3V ≤ VI − VO ≤ 40V - 0.02 0.07 TA = +25°C 10mA ≤ IO ≤100mA VO ≤ 5V VO ≥5V - 5 0.1 25 0.5 mV %/ VO 10mA ≤ IO ≤ 100mA VO ≤ 5V VO ≥ 5V - 20 0.3 70 1.5 mV %/ VO - 50 100 µA %/V Adjustment Pin Current IADJ Adjustment Pin Current Change ∆IADJ 3V ≤ VI - VO ≤ 40V 10mA ≤ IO ≤ 100mA PD < PDMAX - 0.2 5 µA Reference Voltage VREF 3V < VI - VO <40V 10mA ≤ IO ≤100mA PD ≤ PDMAX 1.20 1.25 1.30 V - - 0.7 - % VI - VO = 40V - 3.5 10 mA VI - VO ≤ 15V PD < PDMAX 100 200 - VI - VO ≤ 40V PD < PDMAX, TA = +25°C 25 50 - - 0.003 - %/ VO 66 65 80 - dB - 0.3 - % Temperature Stability Minimum Load Current to Maintain Regulation Maximum Output Current STT IL(MIN) IO(MAX) - RMS Noise, % of VOUT eN TA =+ 25°C 10Hz < f < 10KHz Ripple Rejection RR VO = 10V, f = 120Hz without CADJ CADJ = 10uF Long-Term Stability ST TJ = +125 °C, 1000 Hours mA • Load and Line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. 2 KA317L Typical Application Output KA317L Input Figure 1. 5V Electronic Shutdown Regulator D1 protects the device during an input short circuit. Input KA317L Output Figure 2. Slow Turn-On Regulator Input KA317L Output Figure 3. Current Regulator 3 KA317L Mechanical Dimensions Package TO-92 +0.25 4.58 ±0.20 4.58 –0.15 ±0.10 14.47 ±0.40 0.46 1.27TYP [1.27 ±0.20] 1.27TYP [1.27 ±0.20] ±0.20 4 (0.25) +0.10 0.38 –0.05 1.02 ±0.10 3.86MAX 3.60 (R2.29) +0.10 0.38 –0.05 KA317L Ordering Information Product Number Package Operating Temperature KA317LZ TO-92 0°C to + 125°C 5 KA317L DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 3/14/02 0.0m 001 Stock#DSxxxxxxxx 2002 Fairchild Semiconductor Corporation