HX3001升压芯片.pdf-资料库

HX1001 HX3001 SSyynncchhrroonnoouuss BBoooosstt DDCC//DDCC RReegguullaattoorr FFeeaattuurreess DDeessccrriippttiioonn ① ② fixed The HX3001 is high efficiency synchronous, PWM step-up DC/DC converters optimized to provide a high efficient solution to medium power systems. The devices work under the input voltage between 0.9V and 4.4V with a 1.4MHz frequency switching. These features minimize overall solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. Automatic PWM/PFM mode switching at light load saves power and improves efficiency. The HX3001 is capable of supplying an output voltage between 2.5V and 4.3V, the internal synchronous switch is desired to provide high efficiency without Schottky. The devices also featured providing up to 260mA from a single AA cell input or up to 600mA from a 2-cell AA with a 3V/3.3V output. The HX3001 regulators are available in the industry standard SOT-23-6 power packages (or upon request). Up to 94% Efficiency Low voltage start-up Shut-down current: < 1 Output voltage Input voltage 0.9V 2.5V 0.9V A 4.4V 4.3V (Up to 5V with Low switch on resistance RDS(ON), Internal Schottky) switch: 0.35 1.4MHz fixed frequency switching Automatic PWM/PFM mode switching High switch on current: 0.9A Low profile SOT-23-6 package (lead-free packaging is now available) ： µ ～～：： Ω AApppplliiccaattiioonnss Digital cameras and MP3 Palmtop computers / PDAs Cellular phones Wireless handsets and DSL modems PC cards Portable media players OOrrddeerr IInnffoorrmmaattiioonn HX3001 - SYMBOL ② DESCRIPTION Denotes Output voltage: A : Adjustable Output Denotes Package Types: F: SOT-23-6 ① www.szkingfrom.com TEL:13923795851 hong 1 Free Datasheet http://www.datasheet4u.com/

HHXX33000011 TTyyppiiccaall AApppplliiccaattiioonn AAbbssoolluuttee MMaaxxiimmuumm RRaattiinnggss Power Dissipation……………………………………..…………………………...Internally limited VIN ……………………………………………………………………………………..- 0.3 V + 6 .6V + 6 .6V VOUT………………………………………………...……………………………....- 0.3 V + 6.6 V VSW …….…………………………………..…………………………………………- 0.3 V VEN, VOUT……………………………………...………………………………………- 0.3 V + 6.6 V Operating Temperature Range ……………………………………………………- 30 + 85 Lead Temperature (Soldering 10 sec.) ……………………………………………………+ 300 Storage Temperature Range …………………………………...………………..- 65 + 125 ～～～～ ℃～ ℃～ ℃ ℃ ℃ 5 6 PPiinn AAssssiiggnnmmeenntt 1 2 4 3 PIN NUMBER SOT-23-6 PIN NAME 1 2 3 4 5 6 SW GND FB EN VOUT VIN FUNCTION Switch Output Ground Feedback ON/OFF Control (High Enable) Output Input www.szkingfrom.com TEL:13923795851 hong 2 Free Datasheet http://www.datasheet4u.com/

HHXX33000011 EElleeccttrriiccaall CChhaarraacctteerriissttiiccss IN=1.2V, VOUT=3.3V unless otherwise specified. CONDITIONS MIN TYP MAX UNITS Operating Conditions: TA=25 , V ℃ PARAMETER Output Voltage Range (Adj.) Minimum Start-Up Voltage Minimum Operating Voltage ILOAD = 1mA EN = VIN Switching Frequency Max Duty Cycle VFB = 1.15V Current Limit Delay to Output Feedback Voltage Feedback Input Current VFB = 1.22V NMOS Switch Leakage PMOS Switch Leakage VSW = 5V VSW = 0V NMOS Switch On Resistance VOUT = 3.3V PMOS Switch On Resistance VOUT = 3.3V NMOS Current Limit 700 950 Quiescent Current (Active) Shutdown Current En Input High En Input Low Measured On VOUT, No switching VEN=0V, Including Switch Leakage En Input Current VEN = 5.5V 1 260 0.1 0.01 1 www.szkingfrom.com TEL:13923795851 hong 3 5 1.1 0.75 V V V 1.7 MHz 2.5 1.1 80 0.9 0.6 1.4 87 40 1 0.1 0.1 0.35 0.45 1.165 1.212 1.241 5 5 1 0.35 % ns V nA A A mA A A V V A µ µ Ω Ω µ µ µ Free Datasheet http://www.datasheet4u.com/

HHXX33000011 TTyyppiiccaall PPeerrffoorrmmaannccee CChhaarraacctteerriissttiiccss VOUT=3.3V VOUT=5V www.szkingfrom.com TEL:13923795851 hong 4 Free Datasheet http://www.datasheet4u.com/

HHXX33000011 AApppplliiccaattiioonn IInnffoorrmmaattiioonn SW (Pin 1): Switch Pin. Connect inductor between SW and VIN. Keep these PCB trace lengths as short and wide as possible to reduce EMI and voltage overshoot. GND (Pin 2): Signal and Power Ground. Provide a short direct PCB path between GND and the (–) side of the output capacitor(s). FB (Pin 3): Feedback Input to the gm Error Amplifier. Connect resistor divider tap to this pin. The output voltage can be adjusted from 2.5V to 5V by: VOUT = 1.212V • [1 + (R1/R2)] EN (Pin 4): Logic Controlled Shutdown Input. EN = High: Normal free running operation, 1.4MHz typical operating frequency. EN = Low: Shutdown, quiescent current <1µA. Output capacitor can be completely discharged through the load or feedback resistors. VOUT (Pin 5): Output Voltage Sense Input and Drain of the Internal Synchronous Rectifier MOSFET. Bias is derived from VOUT. PCB trace length from VOUT to the output filter capacitor(s) should be as short and wide as possible. VIN (Pin 6): Battery Input Voltage. The device gets its start-up bias from VIN. Once VOUT exceeds VIN, bias comes from VOUT. Thus, once started, operation is completely independent from VIN. Operation is only limited by the output power level and the battery’s internal series resistance. FFuunnccttiioonnaall DDiiaaggrraamm www.szkingfrom.com TEL:13923795851 hong . 5 Free Datasheet http://www.datasheet4u.com/

HHXX33000011 PPaacckkaaggiinngg IInnffoorrmmaattiioonn Dimensions In Millimeters Max Min 1.050 1.250 0.100 0.000 1.150 1.050 0.300 0.500 0.200 0.100 3.020 2.820 1.500 1.700 2.950 2.650 0.950(BSC) 1.800 0.300 0° 2.000 0.600 8° Dimensions In Inches Max 0.049 0.004 0.045 0.020 0.008 0.119 0.067 0.116 Min 0.041 0.000 0.041 0.012 0.004 0.111 0.059 0.104 0.037(BSC) 0.071 0.012 0° 0.079 0.024 8° Symbol A A1 A2 b c D E E1 e e1 L θ . www.szkingfrom.com TEL:13923795851 hong 6 Free Datasheet http://www.datasheet4u.com/

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