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TPS70458PWPR Fiches technique(PDF) 5 Page - Texas Instruments |
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TPS70458PWPR Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 40 page Lineregulation(mV)=(%/V)x V o x1000 (V 2.7) 100 - Imax x1000 [ V (V +1) ] 100 - Imax o Lineregulation(mV)=(%/V)x V o (3) If VO < 1.8 V then VImax = 6 V, VImin = 2.7 V: If VO > 2.5 V then VImax = 6 V, VImin = VO + 1 V: TPS70445, TPS70448 TPS70451, TPS70458 TPS70402 www.ti.com SLVS307F – SEPTEMBER 2000 – REVISED APRIL 2010 ELECTRICAL CHARACTERISTICS Over recommended operating junction temperature range (TJ = –40°C to +125°C), VIN1 or VIN2 = VOUT(nom) + 1 V, IO = 1 mA, EN = 0 V, COUT1 = 22 mF, and COUT2 = 47 mF (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 2.7 V < VIN < 6 V, FB connected to VO 1.22 Reference TJ = +25°C voltage 2.7 V < VIN < 6 V, FB connected to VO 1.196 1.244 2.7 V < VIN < 6 V, TJ = +25°C 1.2 1.2 V Output (VOUT2) 2.7 V < VIN < 6 V, 1.176 1.224 2.7 V < VIN < 6 V, TJ = +25°C 1.5 1.5 V Output Output (VOUT2) 2.7 V < VIN < 6 V, 1.47 1.53 VO voltage (1) , V (2) 2.8 V < VIN < 6 V, TJ = +25°C 1.8 1.8 V Output (VOUT2) 2.8 V < VIN < 6 V, 1.764 1.836 3.5 V < VIN < 6 V, TJ = +25°C 2.5 2.5 V Output (VOUT2) 3.5 V < VIN < 6 V, 2.45 2.55 4.3 V < VIN < 6 V, TJ = +25°C 3.3 3.3 V Output (VOUT2) 4.3 V < VIN < 6 V, 3.234 3.366 Quiescent current (GND current) for See (2) TJ = +25°C 185 regulator 1 and regulator 2, EN1 = EN2 mA See (2) 250 = 0 V(1) VO + 1 V < VIN ≤ 6 V, TJ = +25°C (1) 0.01 Output voltage line regulation ( ∆VO/VO) %V for regulator 1 and regulator 2 (3) VO + 1 V < VIN ≤ 6 V (1) 0.1 Load regulation for VOUT 1 and VOUT2 TJ = +25°C 1 mV Output noise Regulator 1 79 Vn voltage BW = 300 Hz to 50 kHz, CO = 33 mF, TJ = +25°C mVRMS Regulator 2 77 (TPS70451) Regulator 1 1.75 2.2 Output current limit VOUT = 0 V A Regulator 2 3.8 4.5 Thermal shutdown junction temperature +150 °C Regulator 1 EN1 = VIN, EN2 = VIN TJ = +25°C 1 2 II Standby mA (standby) current Regulator 2 EN1 = VIN, EN2 = VIN 10 Power- Regulator 1 f = 1 kHz TJ = +25°C (1) 65 supply ripple PSRR dB rejection Regulator 2 f = 1 kHz TJ = +25°C (1) 60 (TPS70451) RESET Terminal Minimum input voltage for valid RESET IRESET = 300 mA, V(RESET) ≤ 0.8 V 1.0 1.3 V t (RESET) RESET pulse duration 80 120 160 ms Output low voltage VIN = 3.5 V, I(RESET) = 1 mA 0.15 0.4 V Leakage current V(RESET) = 6 V 1 mA (1) Minimum input operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. Maximum input voltage = 6 V, minimum output current = 1 mA. (2) IO = 1 mA to 1 A for Regulator 1 and 1 mA to 2 A for Regulator 2. Copyright © 2000–2010, Texas Instruments Incorporated Submit Documentation Feedback 5 |
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