Datasheet LTC1625 (Analog Devices) - 22
| Manufacturer | Analog Devices |
| Description | No RSENSE Current Mode Synchronous Step-Down Switching Regulator |
| Pages / Page | 24 / 22 — TYPICAL APPLICATIONS. – 5V/4.5A Positive to Negative Converter. Single … |
| File Format / Size | PDF / 392 Kb |
| Document Language | English |
TYPICAL APPLICATIONS. – 5V/4.5A Positive to Negative Converter. Single Inductor, Positive Output Buck Boost. VIN. IOUT
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LTC1625
U TYPICAL APPLICATIONS – 5V/4.5A Positive to Negative Converter
RF 4.7Ω VIN 5V TO 10V CF 0.1µF 1 16 EXTV V CC IN M1 + CIN 2 15 220 SYNC TK µF FDS6670A 3 14 L1 16V RUN/SS SW 6µH CC1 LTC1625 CB R C 2.2nF 4 13 C SS FCB TG 0.22µF 10k 0.1µF 5 12 I BOOST TH CC2 DB D1 220pF CMDSH-3 MBR140T3 + COUT 6 11 470µF SGND INTVCC 6.3V 7 10 M2 V BG OSENSE FDS6670A + CVCC 4.7µF VOUT 8 9 –5V VPROG PGND 4.5A 1625TA08 CIN: SANYO 16SV220M COUT: SANYO 6SV470M L1: MAGNETICS Kool-Mµ 77120-A7, 9 TURNS, 17 GAUGE
Single Inductor, Positive Output Buck Boost
RF 4.7Ω VIN
VIN IOUT
6V TO 18V CF 18 4.0 0.1µF C + IN 12 3.3 1 16 68µF EXTV V 6 2.0 CC IN C M1 20V SS 2 15 D2 0.1µF Si4420DY x2 SYNC TK MBRS340T3 3 14 RUN/SS SW L1 18µH 4 13 VOUT FCB TG CB 12V R LTC1625 C 0.33µF 10k 5 12 M4 I BOOST TH R1 C1 Si4425DY C C C2 D 100k 470pF C C1 B D3 OUT 220pF + 2.2nF CMDSH-3 100 BAT85 µF 6 11 16V SGND INTVCC M2 30mΩ 7 10 8 V BG Si4420DY M3 x2 OSENSE 1 7 R1 + Z1 Si4420DY C D1 VCC MMBZ 3.92k 1/2 4.7µF MBRS 5240 2 340T3 LTC1693-2 8 9 10V VPROG PGND R2 C2 35.7k 4 3 5 0.1µF D4 D5 1/2 BAT85 6 BAT85 LTC1693-2 1625TA09 CIN: SANYO 20S68M COUT: SANYO 16SA100M L1: 7A, 18µH Kool-Mµ 77120-A7, 15 TURNS, 17 GAUGE 22
U TYPICAL APPLICATIONS – 5V/4.5A Positive to Negative Converter
RF 4.7Ω VIN 5V TO 10V CF 0.1µF 1 16 EXTV V CC IN M1 + CIN 2 15 220 SYNC TK µF FDS6670A 3 14 L1 16V RUN/SS SW 6µH CC1 LTC1625 CB R C 2.2nF 4 13 C SS FCB TG 0.22µF 10k 0.1µF 5 12 I BOOST TH CC2 DB D1 220pF CMDSH-3 MBR140T3 + COUT 6 11 470µF SGND INTVCC 6.3V 7 10 M2 V BG OSENSE FDS6670A + CVCC 4.7µF VOUT 8 9 –5V VPROG PGND 4.5A 1625TA08 CIN: SANYO 16SV220M COUT: SANYO 6SV470M L1: MAGNETICS Kool-Mµ 77120-A7, 9 TURNS, 17 GAUGE
Single Inductor, Positive Output Buck Boost
RF 4.7Ω VIN
VIN IOUT
6V TO 18V CF 18 4.0 0.1µF C + IN 12 3.3 1 16 68µF EXTV V 6 2.0 CC IN C M1 20V SS 2 15 D2 0.1µF Si4420DY x2 SYNC TK MBRS340T3 3 14 RUN/SS SW L1 18µH 4 13 VOUT FCB TG CB 12V R LTC1625 C 0.33µF 10k 5 12 M4 I BOOST TH R1 C1 Si4425DY C C C2 D 100k 470pF C C1 B D3 OUT 220pF + 2.2nF CMDSH-3 100 BAT85 µF 6 11 16V SGND INTVCC M2 30mΩ 7 10 8 V BG Si4420DY M3 x2 OSENSE 1 7 R1 + Z1 Si4420DY C D1 VCC MMBZ 3.92k 1/2 4.7µF MBRS 5240 2 340T3 LTC1693-2 8 9 10V VPROG PGND R2 C2 35.7k 4 3 5 0.1µF D4 D5 1/2 BAT85 6 BAT85 LTC1693-2 1625TA09 CIN: SANYO 20S68M COUT: SANYO 16SA100M L1: 7A, 18µH Kool-Mµ 77120-A7, 15 TURNS, 17 GAUGE 22
