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TPS61087-Q1 Fiches technique(PDF) 5 Page - Texas Instruments |
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TPS61087-Q1 Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 30 page V =9V OUT V =12V OUT V =15V OUT V =18.5V OUT V -InputVoltage-V IN 3.0 2.5 2.0 1.5 1.0 0.5 0.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 f =650kHz S V -InputVoltage-V IN 3.0 2.5 2.0 1.5 1.0 0.5 0.0 4.5 2.5 3.0 3.5 4.0 5.0 5.5 6.0 V =9V OUT V =15V OUT V =18.5V OUT f =1.2Mhz S V =12V OUT 5 TPS61087-Q1 www.ti.com SLVSB50B – DECEMBER 2011 – REVISED JUNE 2016 Product Folder Links: TPS61087-Q1 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated Electrical Characteristics (continued) VIN = 5 V, EN = VIN, VS = 15 V, TA = TJ = –40°C to 125°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BOOST CONVERTER VS Boost output voltage VIN + 0.5 18.5 V VFB Feedback regulation voltage 1.23 1.238 1.25 V gm Transconductance error amplifier 107 μA/V IFB Feedback input bias current VFB = 1.238 V 0.1 μA rDS(on) N-channel MOSFET on-resistance VIN = VGS = 5 V, ISW = current limit 0.13 0.18 Ω VIN = VGS = 3 V, ISW = current limit 0.16 0.23 ISWLEAK SW leakage current EN = GND, VSW = VIN = 6 V 2 μA ILIM N-Channel MOSFET current limit 3.2 4 4.8 A ISS Soft-start current VSS = 1.238 V 7 10 13 μA fS Oscillator frequency FREQ = VIN 0.9 1.2 1.5 MHz FREQ = GND 480 650 820 kHz Line regulation VIN = 2.5 V to 6 V, IOUT = 10 mA 0.0002 %/V Load regulation VIN = 5 V, IOUT = 1 mA to 1 A 0.11 %/A 6.6 Typical Characteristics The typical characteristics are measured with the inductors 7447789003 3.3 µH (high frequency) or 74454068 6.8 µH (low frequency) from Wurth and the rectifier diode SL22. Table 1. Table of Graphs FIGURE IOUT(max) Maximum load current vs Input voltage at High frequency (1.2 MHz) Figure 1 IOUT(max) Maximum load current vs Input voltage at Low frequency (650 kHz) Figure 2 η Efficiency vs Load current, VS = 15 V, VIN = 5 V Figure 3 vs Load current, VS = 9 V, VIN = 3.3 V Figure 4 Supply current vs Supply voltage Figure 5 Oscillator frequency vs Load current Figure 6 Oscillator frequency vs Supply voltage Figure 7 Figure 1. Maximum Load Current vs Input Voltage Figure 2. Maximum Load Current vs Input Voltage |
Numéro de pièce similaire - TPS61087-Q1_16 |
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Description similaire - TPS61087-Q1_16 |
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