ISL95870HRUZ-T Intersil, ISL95870HRUZ-T Datasheet

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... FB R OFS CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners. 4 ™ Frequency Control Loop 4 ™ Modulator Technology (see page 26) ...

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ISL95870, ISL95870A, ISL95870B Applications Schematics: ISL95870 R VCC +5V C PVCC GND R 1 FB1 RTN1 RTN 2 EN GPIO 3 SREF 4 FIGURE 2. ISL95870 APPLICATION SCHEMATIC WITH ONE OUTPUT VOLTAGE SETPOINT AND DCR CURRENT SENSE R VCC +5V ...

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ISL95870, ISL95870A, ISL95870B Applications Schematics: ISL95870A R VCC +5V C PVCC PGND 2 GND R 3 FB1 RTN 4 VID1 RTN1 5 GPIO VID0 6 SREF 7 SET0 8 SET1 SET1 SET2 SET3 FIGURE 4. ISL95870A ...

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ISL95870, ISL95870A, ISL95870B Applications Schematics: ISL95870B +5V C PVCC R FB1 RTN 1 RTN1 VID1 2 GPIO VID0 3 SREF 4 R SET1 SET0 5 SET1 6 R SET3 FIGURE 6. ISL95870B APPLICATION SCHEMATIC WITH FOUR OUTPUT VOLTAGE SETPOINTS AND ...

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Block Diagram VCC POR EN PGOOD PGOOD CIRCUITRY FB INTERNAL COMPENSATION AMPLIFIER SREF + *SET 0 *SET 1 **SET2 REFERENCE VOLTAGE *VID1 CIRCUITRY *VID0 GND *ISL95870A, ISL95870B ONLY **ISL95870B ONLY FIGURE 8. SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM OF ISL95870, ISL95870A, ISL95870B ...

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ISL95870, ISL95870A, ISL95870B Pin Configurations ISL95870 (16 LD 2.6X1.8 ΜTQFN) TOP VIEW GND 1 RTN SREF 6 12 BOOT 11 UGATE 10 PHASE 9 PGOOD ISL95870B (20 LD 3X4 QFN) TOP VIEW 1 RTN VID1 2 ...

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ISL95870, ISL95870A, ISL95870B ISL95870 Functional Pin Descriptions PIN NUMBER SYMBOL 1 GND IC ground for bias supply and signal reference. 2 RTN Negative remote sense input of V the same resistor divider should be used at RTN pin, i.e. keep ...

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ISL95870, ISL95870A, ISL95870B ISL95870A Functional Pin Descriptions PIN NUMBER SYMBOL 1 LGATE Low-side MOSFET gate driver output. Connect to the gate terminal of the low-side MOSFET of the converter. 2 PGND Return current path for the LGATE MOSFET driver. Connect ...

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ISL95870, ISL95870A, ISL95870B ISL95870B Functional Pin Descriptions PIN NUMBER SYMBOL 1 RTN Negative remote sense input of V pin, the same resistor divider should be used at RTN pin, i.e. keep R 2 VID1 Logic input for setpoint voltage selector. ...

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... ISL95870, ISL95870A, ISL95870B Ordering Information PART NUMBER (Note 2) ISL95870HRUZ-T (Notes 1, 4) GAV ISL95870AHRUZ-T (Notes 1, 4) GAW ISL95870BHRZ (Note 3) 870B ISL95870BHRZ-T (Notes 1, 3) 870B ISL95870IRUZ-T (Notes 1, 4) GAZ ISL95870AIRUZ-T (Notes 1, 4) GAX ISL95870BIRZ (Note 3) 870I ISL95870BIRZ-T (Notes 1, 3) 870I NOTES: 1. Please refer to TB347 for details on reel specifications ...

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ISL95870, ISL95870A, ISL95870B Table of Contents Applications Schematics: ISL95870 .................................................................................................... 2 Applications Schematics: ISL95870A.................................................................................................. 3 Applications Schematics: ISL95870B.................................................................................................. 4 Block Diagram .................................................................................................................................... 5 ISL95870 Functional Pin Descriptions ................................................................................................ 7 ISL95870A Functional Pin Descriptions .............................................................................................. 8 ISL95870B Functional Pin Descriptions .............................................................................................. ...

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... For “H” Version Parts . . . . . . . . . . . . . . . . -10°C to +100°C -0. (<10ns) For “I” Version Parts . . . . . . . . . . . . . . . . -40°C to +100°C Storage Temperature . . . . . . . . . . . . . . . . -65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below - 0.3V (DC http://www.intersil.com/pbfree/Pb-FreeReflow.asp BOOT BOOT Recommended Operating Conditions Ambient Temperature Range: For “H” Version Parts . . . . . . . . . . . . . . . . -10°C to +100°C For “ ...

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Electrical Specifications All typical specifications T temperature range, -40°C to +100°C, unless otherwise stated. (Continued) PARAMETER VO Input Leakage Current ERROR AMPLIFIER FB Input Bias Current SREF (Note 8) Soft-Start Current Voltage Step Current POWER GOOD PGOOD Pull-down Impedance PGOOD ...

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Electrical Specifications All typical specifications T temperature range, -40°C to +100°C, unless otherwise stated. (Continued) PARAMETER OCP Threshold Voltage OCP Reference Current OCSET Input Resistance OCSET Leakage Current UVP Threshold Voltage OVP Rising Threshold Voltage OVP Falling Threshold Voltage OTP ...

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ISL95870, ISL95870A, ISL95870B Theory of Operation The following sections will provide a detailed description of the inner workings of the ISL95870, ISL95870A, ISL95870B. Power-On Reset The IC is disabled until the voltage at the VCC pin has increased above the ...

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ISL95870, ISL95870A, ISL95870B Where the ±85µA setpoint voltage-step current; VS positive when V > negative when V NEW OLD < V OLD - V is the new setpoint voltage selected by the NEW VID inputs ...

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ISL95870, ISL95870A, ISL95870B TABLE 1. ISL95870A VID TRUTH TABLE (Continued) VID STATE VID1 VID0 CLOSE 0 0 SW1, SW3 Equations 10, 11, 12 and 13 give the specific V equations for the ISL95870A setpoint reference voltages. The ISL95870A V setpoint ...

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ISL95870, ISL95870A, ISL95870B connects the inverting input of the V specific node among the string of R resistors. All the resistors between that node and the SREF pin serve as the feedback impedance R V amplifier. Likewise, all the resistors ...

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ISL95870, ISL95870A, ISL95870B High Output Voltage Programming The ISL95870 has a fixed 0.5V reference voltage (V ). For high output voltage application, the resistor SREF divider consisting of R and R FB OFS ( 9:1 for 5V output). ...

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ISL95870, ISL95870A, ISL95870B 4 Figure 14 shows the R error-amplifier that does not require an integrator for high DC gain to achieve accurate regulation. The result to the open loop response can be seen in Figure 15. R4 LOOP GAIN ...

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ISL95870, ISL95870A, ISL95870B Figure 17 shows the overcurrent set circuit. The inductor consists of inductance L and the DC resistance DCR. The inductor DC current I creates a voltage drop across L DCR, which is given by Equation 31: ⋅ ...

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... It is assumed that the reader is familiar with many of the basic skills and techniques referenced in the following. In addition to this guide, Intersil provides complete reference designs that include schematics, bills of materials, and example board layouts. Selecting the LC Output Filter The duty cycle of an ideal buck converter is a function of the input and the output voltage ...

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ISL95870, ISL95870A, ISL95870B A DC/DC buck regulator must have output capacitance C into which ripple current I can flow. Current I O P-P develops a corresponding ripple voltage V which is the sum of the voltage drop across the capacitor ...

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ISL95870, ISL95870A, ISL95870B dissipated by the drivers is approximated as Equation 44 1. Where the switching frequency ...

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ISL95870, ISL95870A, ISL95870B GND VIAS TO GROUND OUTPUT PLANE CAPACITORS VOUT PHASE INDUCTOR NODE HIGH-SIDE MOSFETS VIN FIGURE 21. TYPICAL POWER COMPONENT PLACEMENT capacitors between the MOSFETs and the load. High frequency output decoupling capacitors (ceramic) should be placed as ...

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... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries ...

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... Maximum package warpage is 0.05mm. 8. Maximum allowable burrs is 0.076mm in all directions. TERMINAL TIP 9. JEDEC Reference MO-255. 10. For additional information, to assist with the PCB Land Pattern Design effort, see Intersil Technical Brief TB389. 1.40 0.40 0.20 MILLIMETERS MIN NOMINAL ...

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ISL95870, ISL95870A, ISL95870B Package Outline Drawing L20.3.2x1.8 20 LEAD ULTRA THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE (UTQFN) Rev 0, 5/08 1.80 6 PIN 1 ID# (4X) 0.10 TOP VIEW (1 x 0.70 TYPICAL RECOMMENDED LAND PATTERN ...

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ISL95870, ISL95870A, ISL95870B Package Outline Drawing L20.3x4 20 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 6/07 3.00 A PIN 1 INDEX AREA A TOP VIEW (2.65) (3.80) (1.65) (2.80) TYPICAL RECOMMENDED LAND PATTERN 20X 4 4.00 ...