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TPS62700YZF Datasheet(PDF) 3 Page - Texas Instruments |
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TPS62700YZF Datasheet(HTML) 3 Page - Texas Instruments |
3 / 25 page www.ti.com ELECTRICAL CHARACTERISTICS TPS62700 SLVS784A – DECEMBER 2007 – REVISED MARCH 2008 PVIN = AVIN = VIN = 3.6 V, EN = AVIN, TA = TJ = –40°C to 85°C typical values are at TA = 25°C (unless otherwise noted), see parameter measurement information PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY AVIN, PVIN Input voltage range IOUT max = 650 mA 2.5 6 V IOUT Output current VIN 2.5 to 6 V 650 mA IQ Operating quiescent current into AVIN VCON = 1 V, FB = 0 V, VIN = 3.6V, device not 0.1 0.3 mA switching (1) ISD Shutdown current EN = SW=VCON = AGND, AVIN = PVIN = 3.6V 0.01 2 µA ENABLE VIH High Level Input Voltage, EN 1.2 VIN V VIL Low Level Input Voltage, EN 0 0.4 V IIN Input bias Current, EN EN = AVIN 5 10 µA CONTROL INPUT VCON VVCON, MIN VCON Threshold forcing VFB, MIN Falling VCON signal 0.484 0.52 0.556 V VVCON, MAX VCON Threshold forcing VFB,MAX Rising VCON signal 1.211 1.236 1.26 V ZVCON VCON Input resistance 100 k Ω CVCON VCON Input capacitance VCON = 1 V, f = 100 kHz 20 pF IIN VCON VCON Input current 10 µA Gain Internal Gain VOUT/VCON 0.556 V ≤ VCON ≤ 1.208 V 2.5 POWER SWITCH TA = TJ = 25°C 100 140 230 High side MOSFET on-resistance PVIN = VGS = 3.6 V m Ω TA = TJ = –40°C to 85°C 270 RDS(ON) TA = TJ = 25°C 180 200 330 Low-Side MOSFET on-resistance PVIN = VGS = 3.6 V m Ω TA = TJ = –40°C to 85°C 430 Forward current limit MOSFET high side ILIMF PVIN = 3.6 V 935 1100 1200 mA and low side OSCILLATOR fSW Oscillator frequency 3 V < VIN < 5 V 1.7 2.0 2.3 MHz FEEDBACK/OUTPUT VFB, MIN Minimum feedback voltage VCON = 0.4 V (2) (3) 1.25 1.3 1.35 V VFB Feedback voltage VCON = 1.1 V (2) (3) 2.693 2.75 2.835 V VFB, MAX Maximum feedback voltage VCON = 1.4 V (2) (3) 3.028 3.09 3.15 V Linearity Linearity in VCON range 0.556 V to 1.208 V (2) (3) –2 2 % VOUT Rise time from 1.3 V to 3.09 V VIN = 4.2 V, COUT = 4.7 µF, L = 3.3 µH, RLOAD = 5 Ω 20 30 (3) (4) TRESPONSE µs VOUT Fall time from 3.09 V to 1.3 V VIN = 4.2 V, COUT = 4.7 µF, L = 3.3 µH, RLOAD = 10 Ω 20 30 (3) (4) T_ON Start-up Time From Enable low to high transition until VOUT reaches 190 300 µs 3.09 V, COUT = 4.7 µF, L = 3.3 µH, IOUT ≤ 1 mA η Efficiency (L = 3.3 µH, DCR ≤ 100mΩ) VIN = 3.6 V, VOUT = 1.3 V, IOUT = 150 mA (5) (3) 87 % VIN = 3.6 V, VOUT = 3.09 V, IOUT = 400 mA (5) (3) 95 VOUT_RIPPLE Ripple voltage, PWM mode VIN = 3 V to 4.5 V, VOUT = 1.3 V, 10 mVp-p IOUT = 10 mA to 400 mA (3) Line_tr Line transient response VIN = 600 mV step, over VIN range 3 V to 5.5 V TRISE = 50 mVpk TFALL = 10 µs, VOUT = 1.3 V, IOUT = 100 mA (3) Load_tr Load transient response VIN = 3.1/3.6/4.5 V, VOUT = 1.3 V, 50 mVpk transients 0 mA to 100 mA, TRISE = TFALL = 10 µs (3) (1) Device operating in 100% duty cycle mode (2) 2.5 V ≤ VIN ≤ 6 V, with VIN_MIN = VOUT + 0.5 V (3) The voltage need to be measured on the COUT using appropriate measurement probes. For the measurements, a proper PCB layout and usage of recommended inductors and capacitors are essential. See parameter measurement information. (4) Rise/Fall time valid for VFB within specified limits. (5) Using appropriate inductor with R (DCR) less than 100 mΩ Copyright © 2007–2008, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS62700 |
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