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TPS657120YFFR Datasheet(PDF) 9 Page - Texas Instruments |
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TPS657120YFFR Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 63 page  TPS657120 www.ti.com SLVSBO3A – DECEMBER 2013 – REVISED DECEMBER 2015 4.7 Electrical Characteristics: DCDC3 TA = –40°C to +85°C, typical values are at TA = 25°C (unless otherwise noted); see Section 4.12. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN Input voltage 2.8 5.5 V output voltage defined by internal resistor divider; 0.8 3.60 DCDC3_CTRL:VCON = 0 DCDC3 output VDCDC3 V voltage output voltage defined by VCON input; 0.1 3.60 DCDC3_CTRL:VCON = 1 Continuous output IOUT(DCDC3) DCDC3 2200 mA current ILOAD = 0 mA, DCDC3_MODE = 0, Device not 26 46 μA switching IQ Quiescent current ILOAD = 0 mA, DCDC3_MODE = 1, Device 6 mA switching DCDC3_MODE = 1, ILOAD = 0 mA, TA = 25°C; –2% 2% COUT = 2 x 4.7 µF + 2.2 µF DCDC3_MODE = 1, ILOAD = 0 mA, TA = –40 – 85°C; –2.5% 2.5% COUT = 2 x 4.7 µF + 2.2 µF Accuracy; output DCDC3_MODE = 0, ILOAD = 0 mA, TA = 25°C; voltage setting with COUT = 2 x 4.7 µF + 2.2 µF register; –3% 3% the output voltage tolerance is ±3% or ±45 mV DCDC3_CTRL:VCO whichever is larger N = 0 VDCDC3 DCDC3_MODE = 0, ILOAD = 0 mA, TA = –40 – 85°C; COUT = 2 x 4.7 µF + 2.2 µF –3% 3% the output voltage tolerance is ±3% or ±45 mV whichever is larger Accuracy for VCON Vo = 0.1 V to 3.6 V; COUT = 2 x 4.7 µF + 2.2 µF; operation; PWM mode forced automatically; accuracy in –5% 5% DCDC3_CTRL:VCO VCON mode is ±5% or ±25 mV, whichever is larger N = 1 fSW Switching frequency DCDC3_MODE = 1 or DCDC3_CTRL:VCON = 1 2100 2300 2700 kHz High-side MOSFET VIN_DCDC3 = 3.6 V, 100% duty cycle 75 120 m Ω on-resistance RDS(ON) Low-side MOSFET VIN_DCDC3 = 3.6 V, 0% duty cycle 110 180 m Ω on-resistance High-side leakage ILK_HS TJ = 85°C; VINDCDC3=4.2 V 3 μA current Low-side leakage ILK_LS TJ = 85°C; VINDCDC3=4.2 V 3 μA current High-side current ILIM 2.9 V ≤ VIN_DCDC3 ≤ 5.5 V 2400 3000 3600 mA limit Low-side current ILIM 2.9 V ≤ VIN_DCDC3 ≤ 5.5 V 2200 2800 3400 mA limit 2.9 V ≤ VIN_DCDC3 ≤ 5.5 V; EN_nILIM_xl=1 1000 1500 2000 mA Low-side negative ILIM current limit 2.9 V ≤ VIN_DCDC3 ≤ 5.5 V; EN_nILIM_xl=0 200 mA Duty cycle VIN = 3.6 V 2% 100% DCDC3 output VIN = 5 V; VOUT = 3.4 V; Io=2 A; L=1.5 µH, ESR=90 10 50 mVpp voltage ripple mR; Co=10 µF DCDC3 load VIN = 5 V; VOUT = 3.4 V; Io=200 mA to 1.8 A; L=1.5 100 mV transient response µH, ESR=90 mR; Co=10 µF; dt=10 µs VINDCDCx=3.7 V, Vo=3.4 V; Io=1500 mA 80% Efficiency VINDCDCx=3.7 V, Vo=3.4 V; Io=400 mA 90% VINDCDCx=3.7 V, Vo=2.0 V; Io=10 mA 80% Copyright © 2013–2015, Texas Instruments Incorporated Specifications 9 Submit Documentation Feedback Product Folder Links: TPS657120 |
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