Datasheet LTC1622 (Analog Devices) - 14
| Manufacturer | Analog Devices |
| Description | Low Input Voltage Current Mode Step-Down DC/DC Controller |
| Pages / Page | 16 / 14 — TYPICAL APPLICATIONS. LTC1622 2.5V/3A Regulator with External Frequency … |
| File Format / Size | PDF / 198 Kb |
| Document Language | English |
TYPICAL APPLICATIONS. LTC1622 2.5V/3A Regulator with External Frequency Synchronization
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LTC1622
U TYPICAL APPLICATIONS LTC1622 2.5V/3A Regulator with External Frequency Synchronization
VIN 3.3V TO R2 + C1 8.5V 1 8 0.01Ω 47µF SENSE– VIN 16V × 2 2 7 ITH PDRV M1 L1 LTC1622 D1 4.7µH VOUT 3 6 R1 VFB GND 2.5V 10k R3 3A 4 5 RUN/ SYNC/ C2 158k + SS MODE 100µF C3 6.3V 650kHz 220pF × 2 R4 C4 1.5VP-P 75k 560pF 1622 TA03 C1: AVX TPSD476M016R0150 L1: COILCRAFT D03316-472 C2: AVX TPSD107M010R0065 M1: SILICONIX Si3443DV D1: MOTOROLA MBR320T3 R2: DALE WSL-2512 0.01Ω
Zeta Converter with Foldback Current Limit
VIN 2.5V TO D2 R2 + C1 8.5V 1 8 1N4818 0.04 SENSE– V Ω 47µF IN 16V × 2 2 7 ITH PDRV Si3441DV L1B LTC1622 6.2µH 3 6 VOUT VFB GND + 3.3V R1 + C2 R3 47k 4 5 47µF D1 RUN/ SYNC/ L1A 100µF 232k SS MODE 6.2µH 16V 10V C3 470pF C4 R4 0.1µF 75k 1622 TA04 C1: AVX TPSD476M016R0150
VIN IOUT(MAX)
C2: AVX TPSD107M010R0080 3 2
(V) (A)
D1: MOTOROLA MBRS320T3 L1B TOP VIEW L1A 2.5 0.45 L1A, L1B: BH ELECTRONICS BH511-1012 3.3 0.70 R2: DALE WSL-1206 0.04Ω 4 1 • 5.0 0.95 6.0 1.00 8.4 1.05 14
U TYPICAL APPLICATIONS LTC1622 2.5V/3A Regulator with External Frequency Synchronization
VIN 3.3V TO R2 + C1 8.5V 1 8 0.01Ω 47µF SENSE– VIN 16V × 2 2 7 ITH PDRV M1 L1 LTC1622 D1 4.7µH VOUT 3 6 R1 VFB GND 2.5V 10k R3 3A 4 5 RUN/ SYNC/ C2 158k + SS MODE 100µF C3 6.3V 650kHz 220pF × 2 R4 C4 1.5VP-P 75k 560pF 1622 TA03 C1: AVX TPSD476M016R0150 L1: COILCRAFT D03316-472 C2: AVX TPSD107M010R0065 M1: SILICONIX Si3443DV D1: MOTOROLA MBR320T3 R2: DALE WSL-2512 0.01Ω
Zeta Converter with Foldback Current Limit
VIN 2.5V TO D2 R2 + C1 8.5V 1 8 1N4818 0.04 SENSE– V Ω 47µF IN 16V × 2 2 7 ITH PDRV Si3441DV L1B LTC1622 6.2µH 3 6 VOUT VFB GND + 3.3V R1 + C2 R3 47k 4 5 47µF D1 RUN/ SYNC/ L1A 100µF 232k SS MODE 6.2µH 16V 10V C3 470pF C4 R4 0.1µF 75k 1622 TA04 C1: AVX TPSD476M016R0150
VIN IOUT(MAX)
C2: AVX TPSD107M010R0080 3 2
(V) (A)
D1: MOTOROLA MBRS320T3 L1B TOP VIEW L1A 2.5 0.45 L1A, L1B: BH ELECTRONICS BH511-1012 3.3 0.70 R2: DALE WSL-1206 0.04Ω 4 1 • 5.0 0.95 6.0 1.00 8.4 1.05 14