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LM10692BRMYR データシート(PDF) 10 Page - Texas Instruments |
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LM10692BRMYR データシート(HTML) 10 Page - Texas Instruments |
10 / 48 page LM10692 SNVSA53 – JULY 2014 www.ti.com 7.8 Buck 3 Electrical Characteristics (1) (2) over operating free-air temperature range (unless otherwise noted) Unless otherwise noted, VIN = 3.3V, where: VIN =VIN_B1=VIN_B2, VIN_B3=VIN_B4=VIN_B5= VIN_B6. The application circuit used is the one shown in “Typical Application Circuit". TA = 25°C PARAMETER TEST CONDITIONS UNIT MIN TYP(3) MAX VOUT Output Voltage default value 1.75 1.8 1.85 V IOUT-MAX Continuous maximum load current Buck 3 enabled,(3) 0.2 A IPEAK Peak switching current limit Buck 3 enabled 0.8 A Efficiency, Buck 3(3) IOUT = 5mA to 0.2 A, 1.8 Vout, ηSW3-5V 80% 90% L = 2.2 µH, ESRL = 200 m Ω FSW Switching Frequency PWM operation 2 MHz CIN Input Capacitor(3) 4.7 µF Output Filter Capacitor(3) 10 µF COUT 0 mA ≤ IOUT ≤ IOUT-MAX Output Capacitor ESR(3) 10 m Ω L Output Filter Inductance(3) 2.2 µH Feedback Voltage VOUT = 1.8 V (default), VFB3 1.8 V PWM Mode, No Load DC Line regulation(3) 2.9V ≤ VIN ≤ 5.0 V, -1% +1% IOUT = IOUT-MAX ∆VOUT DC Load regulation(3) Vin = 3.3 V, -1% +1% 0.1 × IOUT-MAX ≤ Iout ≤ IOUT-MAX IFB Feedback pin input bias current VFB = 1.8 V 3.5 µA RDS-ON-HS High Side Switch On Resistance Measured pin-to-pin, Vin = 3.3 V 220 m Ω RDS-ON-LS Low Side Switch On Resistance 105 m Ω RDISCHARGE Active Discharge Resistance Measured from FB to GND 18 Ω Internal soft-start (turn on time) Start up from shutdown, VOUT = 0 V, Tstart no load, VOUT = 95% of 1.8 V (3), C out = 190 µs 22 µF (1) All limits are guaranteed by design, test and/or statistical analysis. All electrical characteristics having room-temperature limits are tested during production with TA = 25M C. All hot and cold limits are guaranteed by correlating the electrical characteristics to process and temperature variations and applying statistical process control. (2) Capacitors: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics. (3) Specification ensured by design. Not tested during production. 10 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: LM10692 |
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