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TPS62590DRVT Datasheet(PDF) 5 Page - Texas Instruments |
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TPS62590DRVT Datasheet(HTML) 5 Page - Texas Instruments |
5 / 26 page TPS62590 www.ti.com SLVS897C – JANUARY 2009 – REVISED DECEMBER 2015 6.5 Electrical Characteristics Over full operating ambient temperature range, typical values are at TA = 25°C. Unless otherwise noted, specifications apply for condition VIN = EN = 3.6 V. External components CIN = 10 μF 0603, COUT = 10 μF 0603, L = 2.2 μH, refer to parameter measurement information. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VIN Input voltage range 2.5 5.5 V VIN 2.7 V to 5.5 V 1000 IOUT Output current mA VIN 2.5 V to 2.7 V 600 IOUT = 0 mA, PFM mode enabled (MODE = GND) device not switching, 15 μA see (1) IQ Operating quiescent current IOUT = 0 mA, switching with no load (MODE = VIN) PWM operation, 3.8 mA VOUT = 1.8 V, VIN = 3 V ISD Shutdown current EN = GND 0.5 μA Falling 1.85 UVLO Undervoltage lockout threshold V Rising 1.95 ENABLE, MODE High level input voltage, EN, VIH 2.5 V ≤ VIN ≤ 5.5 V 1 VIN V MODE Low level input voltage, EN, VIL 2.5 V ≤ VIN ≤ 5.5 V 0 0.4 V MODE IIN Input bias current, EN, MODE EN, MODE = GND or VIN 0.01 1 μA POWER SWITCH High side MOSFET on-resistance 250 RDS(on) VIN = VGS = 3.6 V, TA = 25°C m Ω Low side MOSFET on-resistance 190 Forward current limit MOSFET ILIMF VIN = VGS = 3.6 V 1.19 1.4 1.68 A high side and low side Thermal shutdown Increasing junction temperature 140 TSD °C Thermal shutdown hysteresis Decreasing junction temperature 20 OSCILLATOR fSW Oscillator frequency 2.5 V ≤ VIN ≤ 5.5 V 2.25 MHz OUTPUT VO Adjustable output voltage range 0.75 VI V VREF Reference voltage 600 mV MODE = VIN, PWM operation, VFB(PWM) Feedback voltage –2.5% 0% 2.5% 2.5 V ≤ VIN ≤ 5.5 V, see (2) MODE = GND, device in PFM mode, VFB(PFM) Feedback voltage PFM mode 1% +1% voltage positioning active, see (1) Load regulation –1 %/A Time from active EN to reach 95% of tStart Up Start-up time 500 μs VOUT tRamp VOUT ramp-up time Time to ramp from 5% to 95% of VOUT 250 μs VIN = 3.6 V, VIN = VOUT = VSW, EN = Ilkg Leakage current into SW pin GND, 0.1 1 μA see (3) (1) In PFM mode, the internal reference voltage is set to typical 1.01 × VREF . See the parameter measurement information. (2) For VIN = VOUT + 1 V. (3) In fixed output voltage versions, the internal resistor divider network is disconnected from FB pin. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: TPS62590 |
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