FAN2560 Fairchild Semiconductor, FAN2560 Datasheet
FAN2560
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FAN2560 Summary of contents
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... Fairchild Semiconductor Corporation FAN2560 • Rev. 1.0.1 LDO with Fast Transient Response Description The FAN2560 is a linear low-dropout (LDO) regulator with a split-supply architecture. Separate bias and supply inputs allow bias to be taken directly from the battery, while the input is taken from a lower pre- regulated source ...
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... The EN latches the LOW logic state once externally forced. Do not leave this pin floating when the device is turned ON. B2 GND Ground pin. Connect to a PCB GND plane. © 2006 Fairchild Semiconductor Corporation FAN2560 • Rev. 1.0.1 Figure 3. IC Block Diagram VOUT ...
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... Junction-to-ambient thermal resistance is a function of application and board layout. This data is measured with four-layer boards in accordance to JESD51- JEDEC standard. Special attention must be paid not to exceed junction temperature T J(max) © 2006 Fairchild Semiconductor Corporation FAN2560 • Rev. 1.0.1 Parameter Human Body Model per JESD22-A114 Charged Device Model per JESD22-C101 Parameter + 1.4V) < ...
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... Load Transient Response ∆V OUTload t Turn-on Time ON Note: 2 Dropout voltage is the minimum input to output differential voltage needed to maintain V specified conditions © 2006 Fairchild Semiconductor Corporation FAN2560 • Rev. 1.0.1 =-40°C to +85°C, Test Circuit Figure 1, unless otherwise noted. Typical A =1mA, V =1.8V. LOAD EN Conditions (V + 1.4V) < V OUT ...
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... Figure 7. GND Current vs. Load Current 8.0 7.0 6.0 No load 5.0 4.0 3.0 2.0 1.0 0.0 1.6 2.1 2.6 3.1 3.6 V Voltage(V) IN Figure 9. Input V Quiescent Current (V IN © 2006 Fairchild Semiconductor Corporation FAN2560 • Rev. 1.0.1 =2.2μF ceramic, V OUT 59.0 85ºC 58.0 57.0 25ºC 56.0 55.0 54.0 -40ºC 53.0 52.0 51.0 250 300 350 400 2.5 Figure 6. Battery Quiescent Supply Current 6 5 85ºC 4 25ºC 3 -40º ...
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... Figure 11. Load Transient Response (5µs/div.) Figure 13. Line Transient Response (50µs/div.) Figure 15. Start-up and Inrush Current (20µs/div.) © 2006 Fairchild Semiconductor Corporation FAN2560 • Rev. 1.0.1 (Continued) Figure 12. Load Transient Response (5µs/div.) Figure 14. Line Transient Response (50µs/div.) Figure 16. Start-up and Inrush Current (20µs/div.) 6 www ...
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... I (mA) load Figure 21. Output Current Voltage Characteristic, 1.5V Option © 2006 Fairchild Semiconductor Corporation FAN2560 • Rev. 1.0.1 (Continued) Figure 18. PSRR V Figure 20. Noise Spectral Power Density, 100mA 1400 1200 1000 800 600 400 200 0 0 600 800 Figure 22 ...
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... In this case necessary to limit the reverse current to maximum 100mA to avoid adversely affecting reliability. Capacitors Selection The FAN2560 is stable with a wide range of ceramic output capacitors. An output capacitor of at least 0.7µF , effective capacitance and the minimum ESR over the IN frequency range 300mΩ ...
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... Application Example: Post Regulator for a Switching Converter The FAN2560 is an ideal choice for battery-powered equipment. The low quiescent bias current can be supplied directly from the battery, while the input voltage can come from a high-efficiency buck regulator, like FAN5350. This combination provides both best Figure 23 ...
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... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2006 Fairchild Semiconductor Corporation FAN2560 • Rev. 1.0.1 (Ø0.25 PAD ...
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... Fairchild Semiconductor Corporation FAN2560 • Rev. 1.0.1 11 www.fairchildsemi.com ...