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TPS61254 Fiches technique(PDF) 7 Page - Texas Instruments |
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TPS61254 Fiches technique(HTML) 7 Page - Texas Instruments |
7 / 33 page TPS61253, TPS61254, TPS61256, TPS61258, TPS61259 www.ti.com SLVSAG8E – SEPTEMBER 2011 – REVISED MARCH 2015 Electrical Characteristics (continued) Minimum and maximum values are at VIN = 2.3V to 5.5V, EN = 1.8V, TA = –40°C to 85°C; Circuit of Parameter Measurement Information section (unless otherwise noted). Typical values are at VIN = 3.6V, EN = 1.8V, TA = 25°C (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TPS61253 EN = VIN, BP = GND. Open Loop 3300 3620 3900 TPS61258 TPS61259 Switch valley current limit mA TPS61254 ILIM TPS61256 EN = VIN, BP = GND. Open Loop 1900 2150 2400 TPS61257 Pre-charge mode current limit EN = GND, BP = VIN 165 215 265 mA (linear mode) Overtemperature protection 140 °C Overtemperature hysteresis 20 °C OSCILLATOR fOSC Oscillator frequency VIN = 3.6V VOUT = 4.5V 3.5 MHz TIMING BP = GND, IOUT = 0mA. TPS6125x 70 µs Time from active EN to start switching TPS61253 Start-up time TPS61254 BP = GND, IOUT = 0mA. TPS61256 400 µs Time from active EN to VOUT TPS61258 TPS61259 Copyright © 2011–2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TPS61253 TPS61254 TPS61256 TPS61258 TPS61259 |
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