データシートサーチシステム |
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SP6120 データシート(PDF) 5 Page - Sipex Corporation |
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SP6120 データシート(HTML) 5 Page - Sipex Corporation |
5 / 13 page 5 Date: 5/25/04 SP6120 Low Voltage, AnyFETTM, Synchronous, Buck Controller © Copyright 2004 Sipex Corporation BLOCK DIAGRAM APPLICATION SCHEMATIC Figure 1. Schematic 3.3V to 1.9V Power Supply QT, QB = FAIRCHILD FDS6690A L1 = PANASONIC ETQP6F2R5SFA DS = STMICROELECTRONICS STPS2L25U + - + - - + - + - + - + - + + - Synchronous Driver Driver Logic Soft Start & Hiccup Logic S Q R Set Dominant Fault Latch S Q R Program Logic Window Comparator Logic + - TOFF ENABLE GND VFB COMP VCC ISP ISN Reference SS 2.85 VON 2.75 VOFF 430mV 3 4 2 13 5 6 10 SS 2V VFB 3% Low ENABLE VFB 1.25V GM Error Amplifier VFB Zero crossing detect 250mV SS 7 ICHARGE 0.65V 12 8 PGND ROSC 11 14 15 16 9 Continuous/ Discontinuous NFET/PFET ON 100% OFF 100% RESET Dominant PWM Latch QPWM FAULT F (kHz) = 5.7E6/ROSC (Ω) + - 10µs OVC UVLO 1V RAMP 3% 3% - + PROG BST GH SWN - + GL x 10 C IN = SANYO 6TPB330M C OUT = SANYO 4TPB470M SP6120 NC ENABLE ISP ISN VFB COMP SS ROSC BST GH SWN GND PGND GL VCC PROG ® ® NMOS High Side Drive PROG = GND ENABLE CP 100pF CZ 4.7nF RZ 15k CSS 0.33µF ROSC 18.7k CVCC 2.2µF VIN MBR0530 CBST 1µF QT 3.3V VIN CIN 330µF x 2 RS 22.1k CS 39nF L1 2.5µH 1.9V 1A to 8A VOUT RF 5.23k COUT 470µF x 3 RI 10k QB DS CB 1µF |
同様の部品番号 - SP6120 |
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同様の説明 - SP6120 |
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