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AIC2363 Dataheets PDF



Part Number AIC2363
Manufacturers Analog Intergrations Corporation
Logo Analog Intergrations Corporation
Description PWM/PSM Step-Down Converter
Datasheet AIC2363 DatasheetAIC2363 Datasheet (PDF)

AIC2363 3.2A 550k/1.1MHz Synchronous PWM/PSM Step-Down Converter with High Light-load Efficiency  FEATURES  DESCRIPTION  2.5V to 6V Input Voltage Range The AIC2363 is a low-noise, pulse-width-  Adjustable Output Voltage from 0.8V to Vin modulated (PWM), DC-DC step-down converter.  3.2A Guaranteed Output Current The device features an internal synchronous  88% Efficiency at Heavy Load rectifier for high efficiency; it requires no external (Vin=5V, Vout=3.3V, Iout=3.2A) Schottk.

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AIC2363 3.2A 550k/1.1MHz Synchronous PWM/PSM Step-Down Converter with High Light-load Efficiency  FEATURES  DESCRIPTION  2.5V to 6V Input Voltage Range The AIC2363 is a low-noise, pulse-width-  Adjustable Output Voltage from 0.8V to Vin modulated (PWM), DC-DC step-down converter.  3.2A Guaranteed Output Current The device features an internal synchronous  88% Efficiency at Heavy Load rectifier for high efficiency; it requires no external (Vin=5V, Vout=3.3V, Iout=3.2A) Schottky diode. The AIC2363 is ideally suited for  95% Efficiency at Moderate Load Li-Ion battery applications. Automatic PWM/PSM (Vin=5V, Vout=3.3V, Iout=1.5A) mode extends battery life and enhance  91% Efficiency at Light Load efficiency by switching to a pulse-skipping- (Vin=5V, Vout=3.3V, Iout=50mA)  Low RDS(ON) Internal Switches: 110mΩ modulated mode during light load. Shutdown mode places the device in standby, reducing  No Schottky Diode Required supply current to under 2µA.  100% Duty Cycle in Low Dropout Operation Other features of the AIC2363 include high  Fixed 550k/1.1MHz Operating Frequency efficiency for all load range, low dropout voltage,  Optional Soft-Start Internal Fixed 1ms Soft- short circuit protection, and over temperature Start (in SOP-8) protection.  APPLICATIONS  LCD TV  Portable Products  Wireless and DSL Modems  Solid-State Drives  Battery-Operated Devices (1 Li-Ion or 3 NiMH/ NiCd) Analog Integrations Corporation Si-Soft Research Center 3A1, 1 Li-Hsin 1st Rd., Science Park , Hsinchu 300, Taiwan , R.O.C. TEL: 886-3-5772500 FAX: 886-3-5772510 DS-2363G-04 20140219 www.analog.com.tw 1  APPLICATIONS CIRCUIT VIN 5V C1 10uF R1 R4 10Ω 100KΩ PG C2 0.1uF ON OFF 1 VIN 8 EN 7 PGOOD 2 VCC 9 PGND AIC2363 LX FB REF SS GND 10 5 3 6 4 AIC2363 L1 2.2uH R2 50KΩ C5 0.22uF C4 0.1uF R3 16KΩ VOUT 3.3V C3 22uF Fig. 1 Typical Application Circuit for DFN-10 Package VIN 8 VIN LX 7 L1 2.2uH 5V R1 10Ω 1 VCC FB 4 5 ON OFF EN REF 2 C2 C1 0.1uF 6 PGND GND 3 10uF AIC2363 C4 0.1uF VOUT R2 3.3V 50kΩ R3 16kΩ C3 22uF Fig. 2 Typical Application Circuit for SOP-8 Package 2 AIC2363  PIN CONFIGURATION AIC2363XXXXXX PACKING TYPE TR: TAPE & REEL TB: TUBE(For SOP-8 Package) BG: BAG(For DFN-10 Package) PACKAGE TYPE R8: SOP-8 with Exposed Pad DC: DFN-10 with Exposed Pad G: Green Package A: 1.1MHz B: 550kHz PIN CONFIGURATION DFN-10 (3x3) with Exposed Pad (heat sink) TOP VIEW VIN 1 10 LX VCC 2 9 PGND REF 3 Exposed Pad 8 EN GND 4 7 PGOOD FB 5 6 SS Note: The exposed pad must be connected with GND pin. SOP-8 with Exposed Pad (heat sink) TOP VIEW Example: AIC2363AGDCTR  Fixed 1.1MHz Operating Frequency in Green DFN-10 with Exposed Pad Package and Tape & Reel Packing Type VCC 1 REF 2 GN D 3 FB 4 Exposed Pad 8 VIN 7 LX 6 PGND 5 EN Note: The exposed pad must be connected with GND pin. 3 AIC2363  ABSOLUTE MAXIMUM RATINGS Supply Input Volatge, VCC, VIN -0.3V to 6.5V LX Pin Switch Voltage -0.3V to (VIN + 0.3V) Other I/O Pin Voltage -0.3V to (VCC + 0.3V) PGND to GND +/-0.3 V Operating Ambient Temperature Range TA -40C to 85C Operating Maximum Junction Temperature TJ 150C Storage Temperature Range TSTG -65C to 150C Lead Temperature (Soldering 10 Sec.) 260C Thermal Resistance Junction to Case SOP-8 (Exposed Pad) * 15C/W Thermal Resistance Junction to Case DFN 10L (Exposed Pad)* 20C/W Thermal Resistance Junction to Ambient SOP-8 (Exposed Pad)* 60C/W Thermal Resistance Junction to Ambient DFN 10L (Exposed Pad)* 50C/W Latch-Up 200mA HBM (Human Body Mode) 4KV (Assume no Ambient Airflow) Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. * The package is placed on a two layers PCB with 2 ounces copper and 2 square inch, connected by 8 vias. 4 AIC2363  ELECTRICAL CHARACTERISTICS (TA=25C, VIN=3.3V, unless otherwise specified.) (Note1) PARAMETER CONDITIONS Input Voltage Range Under Voltage Lockout Threshold Output Adjustment Range VCC Rising VCC Falling Shutdown Current Quiescent Current (SOP-8 Package) VEN = 0V IOUT = 0A, VFB = 1V No Switching Quiescent Current (DFN-10 Package) IOUT = 0A, VFB = 1V No Switching Standby Current IOUT = 0A, Switching SYMBOL VIN VUVLO(R) VUVLO(F) VOUT ISD IQ IQ ISB MIN 2.5 0.8 TYP 2.3 2.1 1 200 300 600 MAX 6 VIN 2 UNITS V V V V A 380 A 480 A 900 A Feedback Reference Voltage VOUT Line Regulation FB Leakage Current EN Supply Current En Logic High VIN = 2.5V to 5.5V VREF 0.784 0.8 0.816 V ΔVOUT -2 2% IFB 0.1 0.2 A IEN 3.5 A 1.5 VCC V EN Logic Low 0 0.5 V P-Channel On-Resistance N-Channel On-Resistance Switch Leakage Current Peak Inductor Current ILX = 0.2A ILX = 0.2A VEN = 0V, VIN = 5.5V RDSH(ON) RDSL(ON) IPK 4 110 80 0.1 5 m m 1 A A Oscillator Frequency (A Version) fOSCA 920 1100 1280 kHz Oscillator Frequency (B Version) Maximum Duty Cycle Thermal Shutdown Trip Point Thermal Shutdown Hysteresis PGood Le.


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