IP1206TRPBF International Rectifier, IP1206TRPBF Datasheet

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... General DC/DC Converters Package Interface Parts Description Connection Per Bag iP1206PbF LGA 10 iP1206TRPbF LGA - Typical Application Dual Output www.irf.com Multiphase Optimized LGA Power Block Description The iP1206 is a fully optimized solution for medium current synchronous buck applications. The iP1206 can be configured as a dual output voltage power supply delivering up to 15A of current per output ...

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ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND) • Supply Voltage ...................... -0.3V to 16V IN1 IN2 CC CL •V …….……………………….………….……… -0.3V to 30V CH •V ……………………………………………… -0.3V to 30V SW1,2 •FB ………………………………………………. -0.3V to ...

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Recommended Operating Conditions Symbol Definition Input Supply Voltage IN1 IN2 V Bias Supply Voltage CC Io (Note1) Output current per Phase Fs Operating frequency Tj Junction temperature Electrical Specifications Unless otherwise specified, these specification apply over Vcc=12V, ...

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Electrical Specifications PARAMETER Error Amplifier 1,2 Input Bias Current Sink/Source Current Transconductance Input Offset Voltage VP pin Voltage Range TRACK pin Voltage Range Oscillator Frequency Range Frequency Accuracy Ramp Amplitude Minimum Duty Cycle Maximum Duty Cycle Minimum Pulse Width SYNC ...

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Electrical Specifications PARAMETER Over Current Protection Start Threshold Hiccup Duty Cycle Thermal Shutdown Start Threshold Temperature Hysteresis Internal Regulator ( Output Accuracy Dropout Voltage Current Limit Note1: Continuous output current determined by input and output voltage setting. Refer ...

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Pin Description Pin Number Pin Name 1 CC2 2 SS2 3 VIN2 4, 6, 13, 15 PGND 5 VSW2 7 VCB2 8 OC2 9 VCH 10 VCL 11 OC1 12 VCB1 14 VSW1 16 VIN1 17 SS1 18 CC1 19 ...

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Block Diagram Enable Vcc 25uA 25uA 64uA Max SS2 / SD 64uA SS1 / SD POR Error Amp1 V P1 Fb1 CC1 Rt Sync 0.8V V REF Error Amp2 Track V P2 Fb2 CC2 FBS1 FBS2 PGood1 PGood2 Seq V ...

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TYPICAL OPERATING CHARACTERISTICS 12V 1. Fsw = 300kHz 1.0µ ...

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TYPICAL OPERATING CHARACTERISTICS 1.70 1.60 1.50 1.40 1.30 1.20 1.10 1.00 0.90 0. Input Voltage(V) Fig. 4a: Power Loss vs. Input Voltage 1 12. ...

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Circuit Description THEORY OF OPERATION Introduction The iP1206 is a versatile device for high performance buck converters. It consists of two synchronous buck controllers which can be operated either in a two independent outputs mode current share ...

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Internal Regulator iP1206 features an on-board regulator capable of sourcing current up to 100mA. This integrated regulator can be used to generate the necessary bias voltage for drivers. An example of how this can be used is shown in Fig. ...

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Current Share Mode This feature allows the connection of both outputs together to increase current handling capability of the converter to support a common load. In current sharing mode, error amplifier 1 becomes the master which regulates the common output ...

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Soft-Start (cont.) During power up, the converter output starts at zero and thus the voltage about 0V. A current (64µA) injects into the Fb pin and generates a voltage about 1.6V (64µAx25K) across the negative input of ...

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Output Voltage Tracking Sequencing The iP1206 can accommodate a full spectrum of user programmable tracking and sequencing options using Track, Seq, Enable and Power Good pins. Through these pins both simple voltage tracking such as that required by the DDR ...

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Fault Protection The iP1206 monitors the output voltage for over voltage protection and power good indication. It senses the R of low side MOSFET for over current protection. It also protects the output for prebias ds(on) conditions. Fig. 15 below ...

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Over-Current Protection The over current protection is performed by sensing current through the R MOSFET. This method enhances the converter’s efficiency and reduce cost by eliminating a current sense resistor. As shown in Fig. 16, an external resistor (R ) ...

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Shutdown using Soft Start pins The outputs can be shutdown by pulling the soft-start pin below 0.25V. This can be easily done by using an external small signa l transistor. During shutdown both MOSFET drivers will be turned off. Normal ...

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Application Information Design Example: The following example is a typical application for iP1206. The application circuit is shown in page25 max ...

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Inductor Selection The inductor is selected based on output power, operating frequency and efficiency requirements. A low inductor value causes a large ripple current, resulting in a smaller size, faster response to a load transient but poor efficiency and high ...

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Feedback Compensation The iP1206 is a voltage mode controller; the control loop is a single voltage feedback path including error amplifier and error comparator. To achieve fast transient response and accurate regulation, a compensation circuit is necessary. The goal of ...

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To cancel one of the LC filter poles, place the zero before the LC filter resonant frequency pole π ...

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Based on the frequency of the zero generated by output capacitor and its ESR versus crossover frequency, the compensation type can be different. The table below compensation types and location of crossover frequency. Compensator F vs. F ESR type TypII(PI) ...

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Compensation for Current (slave channel) The slave error amplifier transconductance amplifier, configuration the main goal for the slave channel feedback loop is to control the inductor current to match the master channel inductor current as well provides highest bandwidth and ...

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Programming the Current-Limit The Current-Limit threshold can be set by connecting a resistor (R ) from drain of low OCSET side MOSFET to the OCSet pin. The resistor value can be obtained by using Fig. 24 important to ...

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Fig. 25a: Typical Single Output Application circuit for 12V to 1.2V @ 30A Fig. 25b: Typical Dual Output Application circuit for 12V to 2.5V @ 15A , 12V to 1.5V@ 15A www.irf.com Circuit Typical Application 2/26/2008 iP1206PbF Vo = ...

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Recommended PCB Footprint www.irf.com Fig. 26 2/26/2008 iP1206PbF ...

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... All pads on the iP1206 footprint design need to be Solder-mask defined (see Figure 26). International Rectifier application notes AN1028 and AN1029 for further footprint design guidance. • Place as many vias around the Power pads (VIN, VSW, and PGND) for both electrical and optimal thermal performance. • ...

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TOP VIEW .006 [0.15 CORNER www.irf.com Mechanical Outline .006 [0.15] C 27X 23X CORNER ID Fig. 28 2/26/2008 iP1206PbF NOTES: 1. DIMENSIONING & TOLERANCING PER ASME Y14.5M-1994. 2. DIMENSIONS ARE ...

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Tape and Reel Information www.irf.com Fig. 29 2/26/2008 iP1206PbF 29 ...

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Recommended Solder Paste Stencil Design The recommended reflow peak o temperature is 260 C. The total furnace time is approximately 5 minutes with approximately 10 seconds at peak temperature. Pin 1 Identifier International Rectifier Logo Assembly Code IR WORLD HEADQUARTERS: ...