EN5364QI Enpirion, EN5364QI Datasheet
EN5364QI
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EN5364QI Summary of contents
Page 1
... Description The EN5364QI is a Power Supply on a Chip (PwrSoC converter with integrated inductor, PWM controller, compensation providing the smallest possible solution size pin QFN module. The switching frequency can be synchronized to an external clock or other EN5364QIs with the added capability of phasing multiple EN5364QIs as desired ...
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... Figure 2: Pinout Diagram (Top View). All perimeter pins must be soldered to PCB. ©Enpirion 2009 all rights reserved, E&OE 03544 • Applications requiring monotonic start-up with pre-bias • Ripple voltage sensitive applications • Noise sensitive applications Package 68-pin QFN T&R 2 8/21/2009 EN5364QI www.enpirion.com Rev:B ...
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... Clock Input. Depending on the mode, this pin accepts either an input clock to 49 S_IN synchronize the internal switching frequency or the S_OUT signal from another EN5364QI. Leave this pin floating not used. This is a Ternary Input. Floating the pin disables parallel operation. A low level 50 M/S configures the device as Master and a High level configures the device as a slave ...
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... IN T STG T J-ABS MAX SYMBOL MIN V 2.375 IN V 0.60 OUT I LOAD Dropout Resistance). Please see Electrical Characteristics table. LOAD †† 4 8/21/2009 EN5364QI MIN MAX UNITS -0.5 7 -0.5 2.7 V -0.5 3.6 V -65 150 °C 150 °C 260 °C 2000 ...
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... S_OUT Clock high level M/S Pin Float or Low M/S Pin High Delay kΩ Delay in phase angle / kΩ - DEL @ 4MHz switching frequency Phase delay programmable via resistor connected from S_Delay DEL to AGND. 5 8/21/2009 EN5364QI MIN TYP MAX 2.375 2.2 2.1 250 0.588 0.600 0.612 -5 0.035 − ...
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... Figure 5. EXT V = 2.375V 3.32kΩ IN EXT V = 3.3V 15kΩ IN EXT V = 5.0V 24.9kΩ IN EXT V = 6.6V 49.9kΩ IN EXT is rising is nominally 92%. This threshold is 90% when V through an external resistor, strapped to GND, or left floating. Their state cannot be 6 8/21/2009 EN5364QI 120 % 115 60 µs 0 ...
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... (From top to bottom) = 3.3, 2.5, 1.8, 1.2, 1.0V OUT Output Ripple 22μF/1206 Output Ripple 22μF/1206 8/21/2009 EN5364QI Load (Amps) Efficiency V = 5.0V IN 500 MHz BW = 3.3V 1.2V, Iout = 6A IN OUT = 47μF/1206 + 10uF/0805 OUT 500 MHz BW = 5.0V 1.2V, Iout = 6A IN OUT = 47μF/1206 + 10uF/0805 OUT www ...
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... E&OE 03544 = 1.2V Load Transient: V OUT Ch. 5.0V/1.2V, Power Up/Down into 0.2Ω load: V OUT Ch.1: ENABLE, Ch. 100 8 8/21/2009 EN5364QI = 3.3V 1.2V IN OUT , Ch.4: I 0↔6A (slew rate ≥ 10A/µS) OUT LOAD ≈ 50μF, C ≈ 50μ OUT = 100kΩ, C ...
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... Block Diagram Functional Description Synchronous Buck Converter The EN5364QI is a synchronous, programmable power supply with integrated power MOSFET switches and integrated inductor. The nominal input voltage range is 2.375-6.6V. The output voltage is programmed using an external resistor divider network. The feedback control loop is a type III, voltage-mode, and the device uses a © ...
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... EMI frequency components. ©Enpirion 2009 all rights reserved, E&OE 03544 Master / Slave Parallel Operation Multiple EN5364QI devices may be connected in parallel in a Master/Slave configuration to handle load currents greater than device maximum rating. The device is set in Master mode by pulling the ternary M/S pin low or in Slave mode ...
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... The power NFET is also turned on, resulting in a large input supply current. This in turn is expected to trip the OCP of the EN5364QI input power supply. POK is an open drain output. It requires an external pull up. Multiple EN5364QI’s POK pins 11 8/21/2009 EN5364QI . ...
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... Further, voltage-mode control provides superior impedance matching to ICs processed in sub 90nm technologies. In exceptional compensation may be required. The EN5364QI provides the capability to modify the control loop response to allow for customization for specific applications. For more information, contact Enpirion Applications Engineering support. and ...
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... Input Capacitor Selection The EN5364QI requires between 20-40uF of input capacitance. Low ESR ceramic capacitors are required with X5R or X7R dielectric formulation. Y5V or equivalent formulations must not be used as these lose capacitance with frequency, temperature and bias voltage. In some applications, lower value ceramic ...
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... VFB EN5364 R1 GND Figure 6: Example of synchronizing multiple EN5364QIs in a daisy chain with phase delay. Delay ~ 140° Delay ~ 120° Figure 7: Example of a possible way to synchronize and use delays advantageously to minimize input ripple 39kΩ 33kΩ. (Refer to Figure 6 for R1 and R2.) R3 does not matter in this case. ...
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... Please see the Gerber files on the Enpirion website www.enpirion.com dimensions and other layers. Recommendation 1: Input and output filter capacitors should be placed on the same side of the PCB, and as close to the EN5364QI package as possible. They connected to the device with very short and wide traces ...
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... Recommendation 7: The V should be just after the last output filter Thermal Considerations The Enpirion EN5364QI DC-DC converter is packaged 1.85mm 68-pin QFN package. The QFN package is constructed with copper lead frames that have exposed thermal pads. The recommended maximum junction temperature for continuous operation is 125° ...
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... Only the two thermal pads and the perimeter pads are to be mechanically or electrically connected to the PC board. The PCB top layer under the EN5364QI should be clear of any metal (copper pours, traces, or vias) except for the two thermal pads. The “grayed-out” area in Figure 9 represents the area that should be clear of any metal on the top layer of the PCB ...
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... PCB Footprint and Package Dimensions Figure 10: Recommended footprint for PCB layout. Figure 11. Package dimensions. ©Enpirion 2009 all rights reserved, E&OE 03544 www.enpirion.com 18 8/21/2009 EN5364QI Rev:B ...
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... Enpirion products are not authorized for use in nuclear control systems, as critical components in life support systems or equipment used in hazardous environment without the express written authority from Enpirion. ©Enpirion 2009 all rights reserved, E&OE 03544 www.enpirion.com 19 8/21/2009 EN5364QI Rev:B ...