Datasheet LTC3129-1 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | 15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3μA Quiescent Current |
| Seiten / Seite | 30 / 8 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| Dateiformat / Größe | PDF / 1.7 Mb |
| Dokumentensprache | Englisch |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Fixed Frequency Ripple on VOUT. Burst Mode Waveforms
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LTC3129-1
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Fixed Frequency Ripple on VOUT Burst Mode Waveforms Burst Mode Ripple on VOUT
SW1 5V/DIV V VOUT OUT 20mV/DIV 100mV/DIV SW2 5V/DIV IL 200mA/DIV IL IL 200mA/DIV 100mA/DIV 31291 G23 200ns/DIV 31291 G24 50µs/DIV 31291 G25 100µs/DIV L = 10µH L = 10µH L = 10µH VIN = 7V VIN = 7V VIN = 7V VOUT = 5V VOUT = 5V VOUT = 5V IOUT = 200mA IOUT = 5mA IOUT = 5mA COUT = 10µF COUT = 22µF COUT = 22µF
Step Load Transient Response in Step Load Transient Response in Start-Up Waveforms Fixed Frequency Burst Mode Operation
VOUT 5V/DIV VOUT VOUT 100mV/DIV 100mV/DIV VCC 5V/DIV RUN 5V/DIV I I VOUT VOUT IVIN 100mA/DIV 100mA/DIV 200mA/DIV 31291 G26 31291 G27 31291 G28 1ms/DIV 500µs/DIV 500µs/DIV VIN = 7V L = 10µH L = 10µH VOUT = 5V VIN = 7V VIN = 7V IOUT = 50mA VOUT = 5V VOUT = 5V COUT = 22µA COUT = 10µF COUT = 22µF IOUT = 50mA to 150mA STEP IOUT = 5mA to 125mA STEP
PGOOD Response to a Drop On VOUT MPPC Response to a Step Load
VOUT PGOOD 2V/DIV 2V/DIV VIN 2V/DIV VOUT 2V/DIV IVOUT 100mA/DIV 31291 G29 1ms/DIV 31291 G30 2ms/DIV VOUT = 5V VIN = 5VOC VMPPC SET TO 3.5V CIN = 22µF, RIN = 10Ω, VOUT = 5V, COUT = 22µF IOUT = 25mA to 125mA STEP 31291fc 8 For more information www.linear.com/LTC3129-1
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Fixed Frequency Ripple on VOUT Burst Mode Waveforms Burst Mode Ripple on VOUT
SW1 5V/DIV V VOUT OUT 20mV/DIV 100mV/DIV SW2 5V/DIV IL 200mA/DIV IL IL 200mA/DIV 100mA/DIV 31291 G23 200ns/DIV 31291 G24 50µs/DIV 31291 G25 100µs/DIV L = 10µH L = 10µH L = 10µH VIN = 7V VIN = 7V VIN = 7V VOUT = 5V VOUT = 5V VOUT = 5V IOUT = 200mA IOUT = 5mA IOUT = 5mA COUT = 10µF COUT = 22µF COUT = 22µF
Step Load Transient Response in Step Load Transient Response in Start-Up Waveforms Fixed Frequency Burst Mode Operation
VOUT 5V/DIV VOUT VOUT 100mV/DIV 100mV/DIV VCC 5V/DIV RUN 5V/DIV I I VOUT VOUT IVIN 100mA/DIV 100mA/DIV 200mA/DIV 31291 G26 31291 G27 31291 G28 1ms/DIV 500µs/DIV 500µs/DIV VIN = 7V L = 10µH L = 10µH VOUT = 5V VIN = 7V VIN = 7V IOUT = 50mA VOUT = 5V VOUT = 5V COUT = 22µA COUT = 10µF COUT = 22µF IOUT = 50mA to 150mA STEP IOUT = 5mA to 125mA STEP
PGOOD Response to a Drop On VOUT MPPC Response to a Step Load
VOUT PGOOD 2V/DIV 2V/DIV VIN 2V/DIV VOUT 2V/DIV IVOUT 100mA/DIV 31291 G29 1ms/DIV 31291 G30 2ms/DIV VOUT = 5V VIN = 5VOC VMPPC SET TO 3.5V CIN = 22µF, RIN = 10Ω, VOUT = 5V, COUT = 22µF IOUT = 25mA to 125mA STEP 31291fc 8 For more information www.linear.com/LTC3129-1