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LM26480QSQX-CF/NOPB bảng dữ liệu(PDF) 7 Page - Texas Instruments |
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LM26480QSQX-CF/NOPB bảng dữ liệu(HTML) 7 Page - Texas Instruments |
7 / 39 page 7 LM26480-Q1 www.ti.com SNVSA58A – JANUARY 2015 – REVISED JUNE 2016 Product Folder Links: LM26480-Q1 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Low Dropout Regulators, LDO1 and LDO2 (continued) Unless otherwise noted, VIN = 3.6 V, CIN = 1 µF, COUT = 0.47 µF, and values and limits apply for TJ = 25°C, unless otherwise specified. (1)(2)(3)(4) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT COUT Output capacitor Capacitance for stability 0°C ≤ TJ ≤ 125°C 0.47 µF −40°C ≤ TJ ≤ 125°C 0.33 −40°C ≤ TJ ≤ 125°C 0.68 1 Equivalent series resistance (ESR) TJ = −40°C to 125°C 5 500 m Ω (1) All voltages are with respect to the potential at the GND pin. (2) Minimum (MIN) and maximum (MAX) limits are specified by design, test, or statistical analysis. Typical (TYP) numbers represent the most likely norm. (3) CIN, COUT: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) used in setting electrical characteristics. (4) The device maintains a stable, regulated output voltage without a load. (5) VIN ≥ VOUT + RDSON(P) (IOUT + 1/2 IRIPPLE). If these conditions are not met, voltage regulation will degrade as load increases. (6) Quiescent current is defined here as the difference in current between the input voltage source and the load at VOUT. 7.7 Buck Converters SW1, SW2 Unless otherwise noted, VIN = 3.6 V, CIN = 10 µF, COUT = 10 µF, LOUT = 2.2 µH, and limits apply for TJ = 25°C, unless otherwise specified. (1) (2) (3) (4) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VFB (5) Feedback voltage −3% 3% VOUT Line regulation 2.8 V < VIN < 5.5 V IOUT = 10 mA 0.089 %/V Load regulation 100 mA < IOUT < IMAX 0.0013 %/mA Eff Efficiency Load current = 250 mA 96% ISHDN Shutdown supply current EN is de-asserted 0.01 1 µA ƒOSC Internal oscillator frequency Default oscillator frequency = 2 MHz 1.6 2 2.4 MHz Default oscillator frequency = 2.1 MHz 2.1 2.5 Default oscillator frequency = 2.1 MHz TJ = −40°C to 125°C 1.7 IPEAK Buck1 peak switching current limit 2 2.4 A Buck2 peak switching current limit 2 2.4 IQ Quiescent current on(6) No load PFM mode 33 µA No load PWM mode (forced PWM) 2 mA RDSON (P) Pin-pin resistance PFET 200 400 m Ω RDSON (N) Pin-pin resistance NFET 180 400 TON Turnon time Start-up from shutdown 500 µsec CIN Input capacitor Capacitance for stability 10 µF COUT Output capacitor Capacitance for stability 10 |
Số phần tương tự - LM26480QSQX-CF/NOPB |
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Mô tả tương tự - LM26480QSQX-CF/NOPB |
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