1, the commonly used power management chip are HIP630IS653RT923ADP316KA7500, TL494, etc. The following will detail the main types of power management chips, and illustrate four common power management chips.
2, the main power management chips are dual in-line chips, and some surface mount package, HIP630x series chip is a classic power management chip, designed by the famous chip design company Intersil.
3, SGM4151, the chip is a high-efficiency applicationPortable devices for battery-powered devices and power management chips for low-power applications.
4, pin power management chip models include PF7001S PF7001 SOP, UC3843D UC3843AD SOP1LTC4263IS#PBF Linear Technology.
1. LP3906, manufactured by National Semiconductor Corporation, is a versatile, programmable power management chip. MPCI873Q is a power management chip manufactured by Freescale Semiconductor.
2, if the output current is less than 1A, HB3106 can be used. Input voltage 75-40V, withstand voltage 45V, output voltage is adjustable. The periphery is simple.
3, the use of switching power supply chip LM2576HVT-5 (with 5-pin patchJust 5 devices, 2 input and output filter capacitors, a Schottky diode, and an inductor (there are chip inductors, note the power capacity). Just use LDO for the rest.
4, SC5832 is a domestic SOT23-5 small package large current synchronous 2A chip. A metal-oxide-semiconductor field-effect transistor (MOSFET) with very low RDS internal resistance of 80 ho. The input operating voltage is 5V to 5V, and the output voltage is 0.6V and adjustable to 5V.
5, DC/DC: DC-DC conversion module. Available for DCConversion between power supply and DC power supply. Specifically: DC/DC converter is generally composed of control chip, pole coil, diode, transistor, capacitor. DC/DC converters are voltage converters that effectively output a fixed voltage after converting the input voltage.
6, SC2463 provides a wide input voltage range of 4.5V to 30V, two switching converters can be set up to 700 kHz switching frequency, can provide up to 15A output current and as low as 0.5V output voltage. It also provides two positive output voltage linear regulators. Chip TSS0P-28 small package is extremely largeTo reduce the area of the circuit board.
1, V to 8V, LDO efficiency is too low, please recommend DC-DC mode chip ISL6227 or 6539, dual output. Also connect an external IC (FDS 6912), the output voltage is stable.
2, ultra-wide voltage input DC-DC step-down chip XD308H: input voltage 18-600VDC, output current 0.5A, attached circuit for reference.
3, V~8V antihypertensive can be used LM2576-ADJ. 5V to 8V can be TI's TPS61040 (maximum output current 400mA) or TPS61041 (maximum output current 250mA), the input voltage is 8V~6V, the output voltage is minimum equal to the input voltage, the maximum is 28V, packaged as SOT-23 (5-pin).