LV5990M-TLM-H

Ordering number : ENA1849 Bi-CMOS IC LV5990M Low power consumption and high efficiency Step-down Switching Regulator Overview LV5990M is 1ch DC-DC converter with built-in power Pch MOS transistor. The recommended operating range is 4.5V to 18V. The maximum current is 3A. The operating current is about 90μA, and low power consumption is achieved. Functions • 1ch SBD rectification DC-DC converter IC with built-in power Pch MOS transistor • Maximum value of light load mode current is 90μA. • Built-in OCP circuit with P-by-P method • When P-by-P is generated continuously, it shifts to the HICCUP operation. • If connect C-HICCUP to GND pin, then latch-off when over current. • The oscillatory frequency is 360kHz. • UVLO and built-in TSD Specifications Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Input voltage VIN-max 22 V Allowable pin voltage SW 30 V VIN V EN, PG PDR VIN -6 V REF 6 V REF V SS,FB,COMP C-HICCUP Allowable power dissipation Pd max 1.05 W Operating temperature Topr specified substrate * -40 to 85 °C Storage temperature Tstg -55 to 150 °C * Specified board: 40.0mm × 30.0mm ×1.6mm, glass epoxy. 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. O1310 SY 20100929-S00006 No.A1849-1/6 LV5990M Recommended Operating Conditions at Ta = 25°C Parameter Input voltage renge Symbol Conditions Ratings VIN Unit 4.5 to 18 V Electrical Characteristics at Ta = 25°C, VIN = 15V Parameter Symbol Conditions Ratings min typ Unit max Reference voltage 1.235 1.260 1.285 V VCC-5.5 VCC-5.0 VCC-4.5 V FOSC 300 360 420 kHz IC startup voltage (EN pin) VCNT_ON 1.5 VIN V Disable voltage (EN pin) VCNT_OFF 0.3 V Internal reference voltage VREF Pch drive voltage VPDR IOUT=0 to -5mA Saw wave oscillator Oscillatory frequency ON/OFF circuit Soft start circuit Soft start source current ISS_SC EN>1.5V 1.3 2 3 μA Soft start sink current ISS_SK EN