STV8131 5V AND 8V VOLTAGE REGULATOR PRODUCT PREVIEW FEATURES ■ Output Currents up to 1A ■ Fixed Precision Output 1 Voltage 5V ± 2% ■ Fixed Precision Output 2 Voltage 8V ± 2% ■ Output 1 with Disable by TTL Input ■ Output 2 with Disable by TTL Input ■ Short Circuit Protection at both Outputs ■ Thermal Protection ■ Low Drop Output Voltage DESCRIPTION The STV8131 is a monolithic dual positive voltage regulator designed to provide fixed precision output voltages of 5V and 8V at currents up to 1A. Each output can be disabled separately by a TTL input. Short circuit and thermal protections are included. HEPTAWATT (Plastic Package) ORDER CODES: STV8131 Figure 1. Pin Connections OUTPUT 1 OUTPUT 2 DISABLE FOR OUTPUT 1 GROUND DISABLE FOR OUTPUT 2 INPUT 2 INPUT 1 Tab connected to Pin 4 September 2003 This is preliminary information on a new product now in development. Details are subject to change without notice. 8131-01.eps 7 6 5 4 3 2 1 1/5 1 STV8131 Figure 2. Block Diagram DISABLE INPUT 1 INPUT 2 1 2 REFERENCE OUTPUT 1 7 OUTPUT 1 PROTECTION DISABLE 5 DISABLE DISABLE OUTPUT 2 6 OUTPUT 2 3 8131-02.eps STV8131 4 CIRCUIT DESCRIPTION The STV8131 is a dual voltage regulator with separate Disable for each output. The two regulation parts are supplied from one voltage reference circuit trimmed by zener zap during EWS test. Since the supply voltage of this last is connected at Pin 1 (VIN1), the regulator 2 will not work if Pin 1 is not supplied. The outputs stage have been realized in darlington configuration with a drop typical 1.2V. For each output a disable circuit switches-off this output if a voltage lower than 0.8V is applied at corresponding Pin (Pin 3 for output 2, Pin 5 for output 1). ABSOLUTE MAXIMUM RATINGS Symbol VIN VDIS IO1, 2 Pt TSTG TJ Parameter DC Input Voltage Pin 1 Disable Input Voltage Pin 3-5 Output Currents Power Dissipation Storage Temperature unction Temperature Value 20 20 Internally Limited Internally Limited - 65 to + 150 0 to + 150 Unit V V Value 3 130 Unit °C/W °C °C °C THERMAL DATA Symbol RTH(j-c) TJ 2/5 1 Parameter Thermal Resistance Junction-case Recommended Junction Temperature Max. Max. STV8131 ELECTRICAL CHARACTERISTICS (VIN1 = 7V, VIN2 = 10V, TJ = 25°C unless otherwise specified) Symbol VO1 VO2 Parameter Output Voltage Output Voltage VO1 VO2 Output Voltage VIO1, 2 Dropout Voltage VO1, 2LI Line Regulation VO1, 2LO Load Regulation IQ KO1, 2 IO1, 2SC VDISH VDISL IDIS Tjsd Test Conditions IO1 = 10mA IO2 = 10mA Min. 4.9 7.84 5mA < IO12 < 750mA 7V < VIN1 < 14V 10V < VIN2 < 14V 4.8 7.7 Typ. 5 8 IO1 2 = 750mA IO1 2 = 1A 7V < VIN1 < 14V 10V < VIN2 < 14V IO1 2 = 200mA 5mA < IO1 < 0.6A 5mA < IO2 < 0.6A IO1 = 10mA Output 2 Disabled Quiescent Current ∆ V0 ⋅ 10 6 K0 = -----------------------∆T ⋅ V 0 Output Voltage Thermal Drift Unit V V 5.2 8.3 1.4 2 V V V V 50 80 mV mV 100 160 mV mV 2 mA ppm/oC 100 Tj = 0 to + 125°C VIN1 = 7V, VIN2 = 10V VIN2 = 16V (see Note) Short Circuit Output Current Max. 5.1 8.16 Disable Voltage High (corresponding out active) Disable Voltage Low (corresponding out disabled) Disable Bias Current 0V < VDIS < 7V Junction Temperature for Thermal Shut Down 1.6 1 2 A A V -30 145 0.8 V 2 µA o C Note: Safe permanent short-circuit is only guaranteed for input voltages up to 16V. Figure 3. Typical Application DISABLE FOR OUTPUT 1 DISABLE FOR OUTPUT 2 5 3 1 VIN1 7 VO1 6 VO2 2 VIN2 C1 C2 C3 4 C4 8131-03.eps STV8131 C1 to C4 = 10m F 3/5 1 STV8131 PACKAGE MECHANICAL DATA 9-PINS - PLASTIC HEPTAWATT Figure 4. 9-Pin Package Dimensions A C D D1 E F F1 G G1 G2 H2 H3 L L1 L2 L3 L5 L6 L7 M M1 Dia. 4/5 1 Min. Millimeters Typ. 2.4 1.2 0.35 0.6 2.41 4.91 7.49 2.54 5.08 7.62 10.05 Max. 4.8 1.37 2.8 1.35 0.55 0.8 0.9 2.67 5.21 7.80 10.4 10.40 Min. 0.094 0.047 0.014 0.024 0.095 0.193 0.295 Max. 0.189 0.054 0.110 0.053 0.022 0.031 0.035 0.105 0.205 0.307 0.409 0.409 0.668 0.587 0.848 0.891 3.0 15.80 6.6 0.102 0.594 0.236 2.8 5.08 3.65 0.100 0.200 0.300 0.396 16.97 14.92 21.54 22.62 2.6 15.10 6.0 Inches Typ. 0.118 0.622 0.260 0.110 0.200 3.85 0.144 0.152 STV8131 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without the express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics 2003 STMicroelectronics - All Rights Reserved. Purchase of I2C Components by STMicroelectronics conveys a license under the Philips I2C Patent. Rights to use these components in an I2C system is granted provided that the system conforms to the I2C Standard Specification as defined by Philips. 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