High Efficiency Low Noise PFM Step-up DC/DC Converter
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10 /8 — BL8531. Ripple. Voltage. VS. Output. Current. Rip. ple. Voltage. VS. …
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BL8531. Ripple. Voltage. VS. Output. Current. Rip. ple. Voltage. VS. Output. Current. (Vout=2.7V). (Vout=3.3V). 180. 250. 160. ). 140. 200. V. ). V. (m. 120. e. g. (m. lta. 150
BL8531 Ripple Voltage VS. Output Current Rip ple Voltage VS. Output Current (Vout=2.7V) (Vout=3.3V) 180 250 160 ) 140 200 V ) V (m 120 e g (m lta 150 le 100 p o ip V Vin=0.9 80 le Vin=0.9 t R p u Vin=1.0 ip 100 Vin=1.0 tp 60 R u Vin=1.2 Vin=1.2 O 40 Vin=1.5 Vin=1.5 50 Vin=1.8 Vin=1.8 20 Vin=2.0 Vin=2.0 Vin=2.5 0 0 0 0.1 0.2 0.3 0.4 0 0.1 0.2 0.3 0.4 0.5 Output Current (A) Output Current (mA) Ripple Voltage VS. Output Current Iin (no load) VS. Input Voltage (Vout=5.0V) 180 160 Vin=1.5 Vout=2.7V 160 140 Vin=1.6 Vout=3.3V 140 Vin=1.8 Vout=5.0V 120 ) V Vin=2.0 120 100 (m Vin=2.5 ) le p 100 Vin=3.0 A ip 80 (u t R 80 u Iin 60 tp u 60 O 40 40 20 20 0 0 0.00 0.05 0.10 0.15 0.20 0.25 0 1 2 3 4 Output Current (A) Input Voltage (V) Output Voltage VS Temperature 6.0 5.0 ) (V e 4.0 g lta o t V 3.0 u tp u O 2.0 Vout=2.7V 1.0 Vout=3.3V Vout=5.0V 0.0 -40 10 60 110 160 Temp (℃) www.belling.com.cn 8