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| NCMOS Low Power Consumption NOperating Voltage NOutput Voltage Range NOscillator Frequency : 0.9V~10.0V : 2.0V~7.0V : 30kHz GCellular phones, pagers GPalmtops GCameras, video recorders GPortable equipment NOutput Voltage Accuracy : 2.5% 4 The XC6373 is a group of PWM controlled step-up DC/DC converter ICs. The XC6373 series employs CMOS process and laser trimming technologies so as to attain low power and high accuracy. The implemention of a new phase compensation circuit and a slow start function ensure excellent transient response and improved performance. The series is particularly suited for use with pager applications because of their low power consumption and low noise characteristics. Output voltage can be selected from 2.0V to 7.0V in 0.1V increments (accuracy; 2.5%). Oscillator frequency is set at 30kHZ (20%) so as to attain the lowest consumption current possible. A step-up converter circuit can be configured using the XC6373 IC with a coil, a diode, and a capacitor. 5-pin packages, which are provided with either a CE (Chip enable) function that reduces power consumption during shut-down mode, or a VDD pin (separated power and voltage detect pins) are available. SOT-89 small package. Operating (start-up) voltage range : 0.9V~10V Output voltage range : 2.0V~7.0V in 0.1V increments Highly accurate : Set-up voltage 2.5% Oscillator frequency : 30kHz (20%) Maximum output current (Tr. Built-In) : 50mA (TYP.) @ VIN=3.0V, VOUT=5.0V ....Note (1) Highly efficient (Tr. Built-In) : 82% (TYP.) @ VIN=3.0V, VOUT=5.0V ....Note (1) Either chip enable or independent VOUT pin option is selectable for 5-pin package units. Phase compensation and slow start-up circuits included. Small Package : SOT-89 mini-power mold (3-pin, 5-pin) Note (1): Performance depends on external components and PCB layout. 465 (XC6373A) PIN NUMBER PIN NAME 1 2 3 VSS VOUT LX FUNCTION Ground Output voltage monitor, IC internal power supply Switch (XC6373C) PIN NUMBER PIN NAME 5 2 4 VSS VOUT LX CE NC FUNCTION Ground Output voltage monitor, IC internal power supply Switch Chip enable No connection 4 3 1 (XC6373E) PIN NUMBER PIN NAME 5 2 4 3 1 VSS VDD LX VOUT NC FUNCTION Ground IC internal power supply Switch Output voltage monitor No connection GSelection Guide PART TYPE OPERATION MODE PWM PACKAGE SWITCHING Built-in Transistor "Lx" lead Built-in Transistor "Lx" lead Built-in Transistor "Lx" lead Chip Enable(CE) Function Separated "VDD" and "VOUT" ADDITIONAL FUNCTION FEATURES Switching transistor incorporated standard type. Low ripple and highly efficient from low current to high current. Stand-by (CE) capability added version to the XC6373A. Stand-by current; 0.50A max. Individual power supply and set-up voltage sensing leads are available. XC6373A SOT-89 XC6373C PWM SOT-89-5 XC6373E PWM SOT-89-5 GOrdering Information XC6373 Series q w e r t y O P R L A C E XC6373qwerty PWM Controlled 3-pin. Built-in switching transistor Stand-by capability. Built-in switching transistor Separated VDD and VOUT Built-in switching transistor Output Voltage (e.g.,VOUT=3.5V w=3, e=5) OSC Frequency 30kHz Package q=A SOT-89 q=C,E SOT-89-5 Embossed tape: Standard Feed Embossed tape: Reverse Feed 466 GSOT-89 4 GSOT-89-5 467 w q r e 2 1 4 3 q Represents the Product Classification NAME 4 w Represents the integer of the Output Voltage and Oscillator Frequency e Represents the decimal number of the Output Voltage and Oscillator Frequency r 468 Note: The CE pin is only used with the XC6373C. Note: The VDD pin is only used with the XC6373E. 4 Ta=25C PARAMETER VOUT Input Voltage LX Pin Voltage LX Pin Current Continuous Total Power Dissipation Operating Ambient temperature Storage Temperature SYMBOL VOUT VLX ILX Pd Topr Tstg CONDITIONS 12 12 400 500 -30 ~ +80 -40 ~ +125 UNIT V V mA mW C C 469 XC6373A300PR PARAMETER Output Voltage VOUT=3.0V, FOSC=30kHz SYMBOL VOUT VIN VST1 VST2 IDD1 IDD2 RSWON ILXL FOSC MAXDTY EFFI TSS 4.0 External Components Connected. IOUT=1mA. No external components. Apply voltage to VOUT. LX :10k pull-up to 5V. Same as VST2. Apply output voltage 0.95 to VOUT. Same as VST2. Apply output voltage 1.1 to VOUT. Same as IDD1. VLX=0.4V. No external components. VOUT=VLX=10V. Same as IDD1. Measuring of Lx waveform. Same as IDD1. Measuring of Lx waveform. 13.1 3.9 3.4 CONDITIONS MIN 2.925 10 0.90 0.80 21.9 7.9 5.7 1.0 24 80 30 87 77 10.0 20.0 36 92 TYP 3.000 MAX 3.075 Ta=25C UNIT V V V V A A A kHz % % mS Maximum Input Voltage Operation Start-up Voltage Oscillation Start-up Voltage Supply Current 1 Supply Current 2 LX Switch-On Resistance 4 LX Leak Current Oscillator Frequency Maximum Duty Ratio Efficiency Slow-Start Time Measuring conditions: Unless otherwise specified, VIN=VOUT 0.6,IOUT=15mA. See Typical Application Circuits, Fig.1. XC6373A330PR PARAMETER Output Voltage VOUT=3.3V, FOSC=30kHz SYMBOL VOUT VIN VST1 VST2 IDD1 IDD2 RSWON ILXL FOSC MAXDTY EFFI TSS 4.0 External Components Connected. IOUT=1mA. No external components. Apply voltage to VOUT. LX 10k pull-up to 5V. Same as VST2. Apply output voltage 0.95 to VOUT. Same as VST2. Apply output voltage 1.1 to VOUT. Same as IDD1. VLX=0.4V. No external components. VOUT=VLX=10V. Same as IDD1. Measuring of Lx waveform. Same as IDD1. Measuring of Lx waveform. 14.1 4.0 3.4 CONDITIONS MIN 3.128 10 0.90 0.80 23.5 8.1 5.7 1.0 24 80 30 87 77 10.0 20.0 36 92 TYP 3.300 MAX 3.383 Ta=25C UNIT V V V V A A A kHz % % mS Maximum Input Voltage Operation Start-up Voltage Oscillation Start-up Voltage Supply Current 1 Supply Current 2 LX Switch-On Resistance LX Leak Current Oscillator Frequency Maximum Duty Ratio Efficiency Slow-Start Time Measuring conditions: Unless otherwise specified, VIN=VOUT 0.6, IOUT=16.5mA. See Typical Application Circuits, Fig.1. 470 L: SD : CL : CIN : 100H (SUMIDA, CR-54) MA2Q735 (Schottky diode; MATSUSHITA) 16V 47F (Tantalum capacitor; NICHICON, MCE) 16V220F (Aluminium Electrolytic Capacitor) L : 100H (SUMIDA, CR-54) SD : MA2Q735 (Schottky diode; MATSUSHITA) CL : 16V 47F (Tantalum capacitor; NICHICON, MCE) CIN : 16V220F (Aluminium Electrolytic Capacitor) 4 Fig.1 XC6373A Application Fig.3 XC6373C Application L : 100H (SUMIDA, CR-54) SD : MA2Q735 (Schottky diode; MATSUSHITA) CL : 16V 47F (Tantalum capacitor; NICHICON, MCE) CIN : 16V220F (Aluminium Electrolytic Capacitor) Fig.5 XC6373E Application 471 (1) OUTPUT VOLTAGE vs. OUTPUT CURRENT Topr=25C (2) EFFICIENCY vs. OUTPUT CURRENT Topr=25C Output Voltage: VOUT (V) 4 Output Current: IOUT(mA) Efficiency: EFFI (%) Output Current: IOUT(mA) (3) RIPPLE VOLTAGE vs. OUTPUT CURRENT Topr=25C (4) NO LOAD INPUT CURRENT vs. INPUT VOLTAGE Topr=25C Ripple Voltage: Vr (mVp-p) Intput Current: IIN (A) Output Current: IOUT(mA) Input Voltage: VIN(V) 472 This datasheet has been downloaded from: www..com Datasheets for electronic components. |
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