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LTC1628 Datasheet(PDF) 9 Page - Linear Technology |
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LTC1628 Datasheet(HTML) 9 Page - Linear Technology |
9 / 32 page 9 LTC1628/LTC1628-PG 1628fb Figure 2 SWITCH LOGIC – + 0.8V 4.8V 5V VIN VIN 4.5V BINH RUN/SS2 RUN/SS1 CLK2 CLK1 0.18 µA R6 R5 + – FCB + – – + – + – + VREF MERGE LOGIC INTERNAL SUPPLY 3.3VOUT VSEC 3V FCB FLTCPL EXTVCC INTVCC SGND STBYMD + 5V LDO REG SW SHDN 0.55V TOP BOOST TG CB CIN D1 DB PGND BOT BG INTVCC INTVCC VIN + CSEC COUT VOUT 1628 FD/F02 DSEC RSENSE R2 VOSENSE DROP OUT DET RUN SOFT START BOT TOP ON S R Q Q OSCILLATOR FREQSET FCB EA 0.86V 0.80V OV VFB 1.2 µA 6V R1 – + RC 4(VFB) RST SHDN RUN/SS ITH CC CC2 CSS 1.19V 1M 4(VFB) 0.86V SLOPE COMP 3mV + – – + SENSE– SENSE+ INTVCC 30k 45k 2.4V 45k 30k I1 I2 B DUPLICATE FOR SECOND CONTROLLER CHANNEL + – – + PI FU CTIO S FU CTIO AL DIAGRA PGOOD: (LTC1628-PG Only) Open-Drain Logic Output. PGOOD is pulled to ground when the voltage on either VOSENSE pin is not within ±7.5% of its set point. NC: These “No Connect” pins are not tied internally to anything. On the PC layout, these pin landings should be connected to the SGND plane under the IC. |
Similar Part No. - LTC1628_15 |
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Similar Description - LTC1628_15 |
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