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MFS2401AVBA0ES Datasheet(PDF) 37 Page - NXP Semiconductors |
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MFS2401AVBA0ES Datasheet(HTML) 37 Page - NXP Semiconductors |
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37 / 151 page  NXP Semiconductors FS2400 Fail-safe system basis chip with SMPS and LDO, CAN FD transceiver 14.1.5 HVBUCK efficiency The HVBUCK efficiency was measured at 2.25 MHz in PWM and PFM mode using the exact hardware and OTP configurations listed in Table 14. 3.3 V 2.5 V 2 V Inductor reference TFM VLS TFM VLS TFM VLS Vin 14 14 14 14 14 14 Cin (eff.) 3.4 uF 3.4 uF 3.4 uF 3.4 uF 3.4 uF 3.4 uF Cin_esr 3.4 mΩ 3.4 mΩ 3.4 mΩ 3.4 mΩ 3.4 mΩ 3.4 mΩ Cout (eff.) 8.9 uF 8.9 uF 9.3 uF 9.3 uF 9.6 uF 9.6 uF Cout_esr 3.1 mΩ 3.1 mΩ 3.1 mΩ 3.1 mΩ 3.1 mΩ 3.1 mΩ L (eff.) 4.7 µH 3.8 µH 4.7 µH 3.8 µH 4.7 µH 3.8 µH L_dcr 200 mΩ 120 mΩ 200 mΩ 120 mΩ 200 mΩ 120 mΩ Hardware C_boot 33 nF 33 nF 33 nF 33 nF 33 nF 33 nF BUCK_SRHSOFF 10 ns 10 ns 10 ns 10 ns 10 ns 10 ns BUCK_SRHSON 10 ns 10 ns 10 ns 10 ns 10 ns 10 ns BUCK_CLK 2.25 MHz 2.25 MHz 2.25 MHz 2.25 MHz 2.25 MHz 2.25 MHz BUCK_AVG_OC_PWM 600 mA 600 mA 600 mA 600 mA 600 mA 600 mA BUCK_PK_OC_PWM 800 mA 800 mA 800 mA 800 mA 800 mA 800 mA BUCK_PFM_TON 305 ns 305 ns - - - - BUCK_PFM_TOFF 250 ns 250 ns - - - - VV1_BUCK 3.3 V 3.3 V 2.5 V 2.5 V 2.0 V 2.0 V VV1_LP_BUCK 3.3 V 3.3 V - - - - BUCK_SEL_PFM_TON 0b'0 0b'0 - - - - BUCK_RRV_LV 12 ns 12 ns 12 ns 12 ns 12 ns 12 ns OTP VBOS2V1_SW_LP_EN 0b'0 0b'0 0b'0 0b'0 0b'0 0b'0 Table 14. Hardware and configurations Figure 22 and Figure 23 are the HVBUCK efficiency measured in PWM at 2.2 MHz, using the TFM252012ALMA4R7MTAA reference inductor and the VLS3015CX-4R7M-H reference inductor, respectively. Output current (A) 0 0.4 0.3 0.2 0.1 aaa-051569 60 70 50 80 90 Efficiency (%) 40 2 V 3.3 V Figure 22. HVBUCK efficiency using 2.25 MHz using TFM252012ALMA4R7MTAA FS2400 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved. Product data sheet Rev. 4 — 23 October 2024 Document feedback 37 / 151 |
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