Datasheet LTC3129-1 (Analog Devices) - 25
| Manufacturer | Analog Devices |
| Description | 15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3μA Quiescent Current |
| Pages / Page | 30 / 25 — Typical applicaTions |
| File Format / Size | PDF / 1.7 Mb |
| Document Language | English |
Typical applicaTions
Model Line for this Datasheet
Text Version of Document
LTC3129-1
Typical applicaTions 5V Converter Operates from Two to Eight AA or AAA Cells Using Bootstrap Diode to Increase Efficiency at High VIN and Extend Operation at Low VIN
22nF 22nF 8.2µH VIN < 5V, IOUT = 100mA VIN > 5V, IOUT = 200mA BST1 SW1 SW2 BST2 VIN VIN V VOUT OUT 1.92V TO 15V 5V 22µF LTC3129-1 AFTER STARTUP RUN BAT54 VCC MPPC PGOOD TWO TO EIGHT AA OR AAA BATTERIES PWM VS1 VCC 10µF VS2 2.2µF VS3 GND PGND 31291 TA06
3.3V Converter Uses MPPC Function to Work with High Resistance Battery Pack
22nF 22nF 3.3µH BST1 SW1 SW2 BST2 IOUT = 100mA VIN VMPPC = 2.9V VIN V V OUT OUT 3.3V 10µF LTC3129-1 10Ω 10µF 1.5M RUN MPPC PGOOD PWM 1.5V RC 1.5V V 150k CC VS1 VCC 1.5V VS2 CC 33pF 1M VS3 2.2µF GND PGND 31291 TA07 NOTE: RC AND CC HAVE BEEN ADDED FOR IMPROVED MPPC LOOP STABILITY WHEN USING AN INPUT CAPACITOR VALUE LESS THAN THE RECOMMENDED MINIMUM OF 22µF 31291fc For more information www.linear.com/LTC3129-1 25
Typical applicaTions 5V Converter Operates from Two to Eight AA or AAA Cells Using Bootstrap Diode to Increase Efficiency at High VIN and Extend Operation at Low VIN
22nF 22nF 8.2µH VIN < 5V, IOUT = 100mA VIN > 5V, IOUT = 200mA BST1 SW1 SW2 BST2 VIN VIN V VOUT OUT 1.92V TO 15V 5V 22µF LTC3129-1 AFTER STARTUP RUN BAT54 VCC MPPC PGOOD TWO TO EIGHT AA OR AAA BATTERIES PWM VS1 VCC 10µF VS2 2.2µF VS3 GND PGND 31291 TA06
3.3V Converter Uses MPPC Function to Work with High Resistance Battery Pack
22nF 22nF 3.3µH BST1 SW1 SW2 BST2 IOUT = 100mA VIN VMPPC = 2.9V VIN V V OUT OUT 3.3V 10µF LTC3129-1 10Ω 10µF 1.5M RUN MPPC PGOOD PWM 1.5V RC 1.5V V 150k CC VS1 VCC 1.5V VS2 CC 33pF 1M VS3 2.2µF GND PGND 31291 TA07 NOTE: RC AND CC HAVE BEEN ADDED FOR IMPROVED MPPC LOOP STABILITY WHEN USING AN INPUT CAPACITOR VALUE LESS THAN THE RECOMMENDED MINIMUM OF 22µF 31291fc For more information www.linear.com/LTC3129-1 25
