Ordering number : ENA1461A Bi-CMOS LSI LV59012M 1.2V Constant-Voltage Power Supply IC Overview The LV59012M is a constant-voltage power supply IC incorporating the output ON/OFF function, which offers advantages such as small current drain when output OFF and saves power dissipation of the equipment. Features • Output voltage ON/OFF function with the control pin (active, high) • Output current of 1A obtainable • Small current drain (1μA max) when output OFF and optimum for power saving • MFP8 (200mil) package, ensuring easy mounting design • Full compliment of protection circuits incorporated (including overcurrent protection, thermal protection) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum power supply Symbol Conditions Ratings Unit VIN1 VIN1 pin 6.2 V VIN2 VIN2 pin 6.2 V Allowable power dissipation Pd max Mounted on a specified board.* 1.45 W Operating Temperature Topr -30 to +85 °C Storage Temperature Tstg -40 to +150 °C * Specified board: 50mm × 50mm × 1.6mm, glass epoxy both sides Recommended Operating Ranges at Ta = 25°C Parameter power supply Output current Symbol Conditions Ratings Unit VIN1 VIN1 pin 1.6 to 6 V VIN2 VIN2 pin 1.8 to 6 V 0 to 1 A IO Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. 93010 SY/42809 MS 20090413-S00007 No.A1461-1/7 LV59012M Electrical Characteristics at Ta = 25°C, VIN1 = VIN2 = 3V Parameter Symbol Ratings Conditions min typ Unit max 160 μA 1 μA 1.224 V Current drain IVIN LDO ON Standby current ISTBY CTL = Low 110 Output voltage VO IO = 10mA Dropout voltage 1 Vdrop1_1 IO = 1A, VIN1 = VIN2 Vdrop1_2 IO = 0.3A, VIN1 = VIN2 Dropout voltage 2 Vdrop2_1 IO = 1A, VIN2 = 3V, VIN1 dropout voltage Vdrop2_2 IO = 0.3A, VIN2 = 3V, VIN1 dropout voltage 0.4 V Load Regulation VLD IO = 5mA to 1A 10 50 mV Line Regulation VLN VIN1 = VIN2 = 1.8V to 6V, IO = 10mA 10 50 mV Voltage temperature coefficient ΔVT Ta = -30 to +85°C, IO = 10mA * ±100 Ripple Rejection VRL IO = 10mA, VRpp=1V, fRR = 1kHz * 70 dB Output Noise Voltage VON IO = 10mA, 20Hz < f < 20kHz * 60 μVrms Output 1.176 1.2 1 V 0.6 V 1 V ppm/°C CTL pin High level voltage VCTLH 1.5 5 V Low level voltage VCTLL 0 0.3 V Input current ICTL 8.5 μA VCTL = 6V * Design guarantee Package Dimensions unit : mm (typ) 3372 Pd max -- Ta TOP VIEW SIDE VIEW BOTTOM VIEW 5.0 (3.4) (2.6) 0.43 6.0 4.4 8 1 2 0.35 0.15 1.27 Specified board: 50×50×1.6mm3 glass epoxy both sides. 1.5 1.45 1.0 0.58 0.5 0 -30 -20 1.7 MAX (1.5) SIDE VIEW 0.05 (0.65) Allowable power dissipation, Pd max -- W 2.0 0 20 40 60 80 85 100 Ambient temperature, Ta -- °C SANYO : MFP8(200mil) No.A1461-2/7 LV59012M Pin Assignment VIN1 1 8 GND 7 NC NC 2 LV59012M VIN2 3 6 VO CTL 4 5 NC Top view Specified Board (Top side) Specified Board (Bottom side) Block Diagram VIN1 10μF VIN2 CTL 1 6 VO 4.7μF 3 4 Signal power supply Current Limit BANDGAP Reference Thermal Protection 8 GND No.A1461-3/7 LV59012M Pin Function Pin No. Pin name Function 1 VIN1 Power system supply pin. 6 VO Output voltage pin. Equivalent circuit 1 VIN1 6 VO 300Ω 8 GND 2 NC No contact. 3 VIN2 Signal system power supply pin. 4 CTL ON/OFF control pin. VIN2 3 10kΩ CTL 4 1.5MΩ GND 8 5 NC No contact. 7 NC No contact. 8 GND Ground pin. IVIN -- Ta 120 VIN1 = VIN2 = 3V Standby current, ISTBY -- μA Current drain, IVIN -- μA VIN1 = VIN2 = 3V 110 100 90 80 -40 -20 0 ISTBY -- Ta 0.100 20 40 60 80 0.075 0.050 0.025 0 -40 100 -20 VLN -- Ta 1.5 0 20 40 60 80 100 80 100 Ambient temperature, Ta -- °C Ambient temperature, Ta -- °C VLD -- Ta 8 VIN1 = VIN2 = 3V IO = 5mA to 1A VIN1 = VIN2 = 1.8 to 6V IO = 10mA Load regulation, VLD -- mV Line regulation, VLN -- mV 7 1.25 1.0 0.75 6 5 4 3 0.5 -40 -20 0 20 40 60 Ambient temperature, Ta -- °C 80 100 2 -40 -20 0 20 40 60 Ambient temperature, Ta -- °C No.A1461-4/7 LV59012M VO -- Ta 1.2100 VIN1 = VIN2 = 3V CLT threshold voltage, VCLTth -- V VIN1 = VIN2 = 3V IO = 10mA Output voltage, VO -- V 1.2075 1.2050 1.2025 1.2000 -40 -20 VCLTth -- Ta 1.25 0 20 40 60 80 1.00 0.75 0.50 -40 100 Ambient temperature, Ta -- °C 40 60 80 100 VO -- IO VIN1 = VIN2 = 3V 4.5 Output voltage, VO -- V CLT input current, ICLT -- μA 20 2.0 VCL = 6V 3.0 1.5 0 -40 0 Ambient temperature, Ta -- °C ICTL -- Ta 6 -20 -20 0 20 40 60 80 1.5 1.0 0.5 0 100 0 0.5 Ambient temperature, Ta -- °C VRL -- fRR 100 1.0 1.5 2.0 Output current, IO -- A Ripple rejection, VRL -- dB VRpp = 1V IO = 10mA 80 60 40 20 0 0.01 2 3 5 7 0.1 2 3 5 7 1 2 3 5 7 10 2 3 5 7 100 Load response 800 100mA ⇔ 600mA 600 400 200 0 1.3 1.2 1.1 t -- μs 20μs / div Output voltage, VO -- V Output current, IO -- A Output voltage, VO -- V Output current, IO -- A Ripple frequency, fRR -- kHz Load response 200 50mA ⇔ 150mA 150 100 50 0 1.22 1.20 1.18 t -- μs 20μs / div No.A1461-5/7 Output voltage, VO -- V Input voltage, VIN -- V LV59012M Input response 6 IO = 100mA tr,tf = 5μs 5 4 3 1.25 1.20 1.15 1.1 1.1 t -- μS 100μS / div CTL OFF 4 IO = 0mA CO = 4.7μF Output voltage, VO -- V CTL input voltage, VCLT -- V Output voltage, VO -- V CTL input voltage, VCLT -- V CTL ON 2 0 4 IO = 0mA CO = 4.7μF 2 0 1.5 1.5 1.0 1.0 0.5 0.5 0 t -- ms 0.2ms / div 0 t -- ms 1ms / div No.A1461-6/7 LV59012M Radiation Pad • Radiation pad is high impedance and connected with a substrate of IC. • Use radiation pad by GND or opening. VIN1 and VIN2 The dropout voltage can be lowered by making VIN1 and VIN2 another power supply within a some current range. Refer to Figure 1. Vdrop max -- IO Maximum dropout voltage, Vdrop max -- V 1.5 (1) VIN1 and VIN2 are connected. (2) VIN1 and VIN2 are another power supplies. (VIN2 = 3V) 1.0 (1) 0.6 0.5 0.4 (2) 0 0 300 530 600 900 1000 1200 Output current, IO -- mA Figure 1 SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of September, 2010. Specifications and information herein are subject to change without notice. PS No.A1461-7/7