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XC6372 Dataheets PDF



Part Number XC6372
Manufacturers Torex Semiconductor
Logo Torex Semiconductor
Description Step-up DC/DC Converter
Datasheet XC6372 DatasheetXC6372 Datasheet (PDF)

XC6371/XC6372 Series PWM,PWM/PFM Controlled Step-up DC/DC Converters ETR0402_005 ☆GreenOperation Compatible ■GENERAL DESCRIPTION The XC6371/XC6372 series is a group of PWM controlled and PWM/PFM controlled step-up DC/DC converters. The built-in 1.4Ω switching transistor type enables a step-up circuit to be configured using only three components, a coil, a diode, and a capacitor. Output voltage can be selectable in the range from 2.0V to 7.0V in increments of 0.01V (accuracy:±2.5%). Oscillation.

  XC6372   XC6372



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XC6371/XC6372 Series PWM,PWM/PFM Controlled Step-up DC/DC Converters ETR0402_005 ☆GreenOperation Compatible ■GENERAL DESCRIPTION The XC6371/XC6372 series is a group of PWM controlled and PWM/PFM controlled step-up DC/DC converters. The built-in 1.4Ω switching transistor type enables a step-up circuit to be configured using only three components, a coil, a diode, and a capacitor. Output voltage can be selectable in the range from 2.0V to 7.0V in increments of 0.01V (accuracy:±2.5%). Oscillation frequency is also selectable from 50kHz, 100kHz, and 180kHz (accuracy:±15%) for the XC6371 and the XC6372 series. Soft-start time is internally set and offers protection against in-rush currents when the power is switched on and prevents voltage overshoot. Packages with CE (chip enable) pin are also available which can reduce the IC power consumption during during stand-by mode. The XC6371 series is the standard PWM controlled products. The control of the XC6372 series switches from PWM to PFM control during light loads when automatically switching is selected and the series is highly efficient from light loads to large output currents. ■APPLICATIONS ●Smart phones / Mobile phones ●Note PCs / Tablet PCs ●Digital still cameras / Camcorders ●Mobile devices / terminals ■FEATURES Operation Start Voltage Range : 0.9V~10V Output Voltage Range : 2.0V~7.0V (0.1V increments) Highly Accurate : ±2.5% Oscillation Frequency : 50kHz, 100kHz, 180kHz (±15%) Maximum Output Currents : 100mA(TYP.) @ VIN=3.0V, VOUT=5.0V * Highly Efficient : 85%(TYP.) @ VIN=3.0V, VOUT=5.0V * Built-in switching transistor. CE pin type (XC6371C, XC6372C) Phase compensation and soft start-up circuits built-in CMOS Low Power Consumption Packages : SOT-89, SOT-89-5, USP-6B Environmentally Friendly: EU RoHS Compliant, Pb Free * Performance depends on external components and PCB layout. ■TYPICAL APPLICATION CIRCUIT ■TYPICAL PERFORMANCE CHARACTERISTICS 1/17 XC6371/XC6372 Series ■PIN CONFIGURATION ■PIN ASSIGNMENT XC6371/XC6372A PIN NUMBER SOT-89 USP-6B 1 6 2 1 3 4 - 2, 3, 5 PIN NAME VSS VOUT Lx NC *The dissipation pad for the USP-6B package should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the pin No.1. FUNCTION Ground Output Voltage Monitor/IC Internal Power Supply Switch No Connection XC6371/XC6372C PIN NUMBER SOT-89-5 USP-6B 5 6 2 1 4 4 3 3 1 2, 5 PIN NAME VSS VOUT Lx CE NC FUNCTION Ground Output Voltage Monitor/IC Internal Power Supply Switch Chip Enable No Connection 2/17 ■PRODUCT CLASSIFICATION ●Selection Guide START PWM XC6371 XC6371/XC6372 Series Standard XC6371A Chip Enable XC6371C PWM/PFM XC6372 Standard XC6372A Chip Enable XC6372C ●Ordering Information XC6371①②③④⑤⑥-⑦(*1) : PWM controlled XC6372①②③④⑤⑥-⑦(*1) : PWM/PFM switching control DESIGNATOR ① DESCRIPTION Type of DC/DC Converter SYMBOL A C DESCRIPTION 3-pin DC/DC converter with built-in switching transistor Stand-by capability with built-in switching transistor ②③ Output Voltage Integer e.g. VOUT=3.5V→②=3, ③=5 ④ ⑤⑥-⑦ Oscillation Frequency Packages Taping Type (*2) 0 1 2 PR PR-G DR DR-G 50kHz 100kHz 180kHz SOT-89 (XC6371/72 A type) SOT-89-5 (XC6371/72 C type) SOT-89 (XC6371/72 A type) SOT-89-5 (XC6371/72 C type) USP-6B USP-6B (*1) The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS compliant. (*2) The device orientation is fixed in its embossed tape pocket. For reverse orientation, please contact your local Torex sales office or representative. (Standard orientation: ⑤R-⑦, Reverse orientation: ⑤L-⑦) 3/17 XC6371/XC6372 Series ■BLOCK DIAGRAMS XC6371/XC6372A, C (The(VOUT pin servpes also as VDD) Lx VLx limi ter Buffer ) Soft Start V re f VDD VSS EXT PWM Control OSC 50/100/180KHz Chip Enable Phase comp + - CE Note: The CE pin is only used with the XC6371C. XC6371/72/73E Lx VSS EXT VDD VLx l imi ter Buffer Soft Start V re f PWM Control OSC 50/100/180KHz Phase comp + - VOUT VDD VOUT Note: Built-in transistor type units use the Lx pin. ■ABSOLUTE MAXIMUM RATINGS PARAMETER VOUT Input Voltage LX pin Voltage LX pin Current CE Input Voltage SOT-89, Power Dissipation SOT-89-5 USP-6B VDD Input Voltage Operating Temperature Range Storage Temperature Range SYMBOL VOUT VLX ILX VCE Pd VDD Topr Tstg RATINGS 12 12 400 12 500 100 12 -30~+80 -40~+125 Ta=25℃ UNITS V V mA V mW V ℃ ℃ 4/17 XC6371/XC6372 Series ■ELECTRICAL CHARACTERISTICS XC6371/72A501 VOUT=5.0V, FOSC=100kHZ PARAMETER SYMBOL CONDITIONS Output Voltage VOUT Maximum Input Voltage VIN Operation Start Voltage VST1 External Components Connected, IOUT=1mA Oscillation Start Voltage No Load Input Current VST2 IIN No external component.


XC6371 XC6372 XBS303V17R-G


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