DATASHEET ISL68301 FN8791 Rev.0.00 Scalable Single Output Digital PWM Controller with PMBus Jun 7, 2018 The ISL68301 is a PMBus compliant, single-phase Features digital DC/DC controller for use with SPS and DrMOS Unique compensation-free design, which is always power stages. stable The ISL68301 implements the Renesas fully digital Output voltage range: 0.45V to 5.5V ChargeMode control modulation scheme, allowing it Input voltage range: 4.75V to 16V or 4.5V to 5.5V to achieve both industry leading performance and ease of use. ChargeMode control provides an inherently stable 0.5% output voltage accuracy over line, load, and control loop that can respond to load transients in a single temperature switching cycle, significantly decreasing output capacitor ChargeMode control achieves fast transient response, requirements. requires minimal output capacitance, and provides A dedicated current share bus allows for paralleling up to output stability without compensation eight devices in a current share configuration, allowing Single-channel output, can be paralleled with up to support for a wide range of load currents. eight devices in a single droop-less current sharing In conjunction with many other Renesas digital output controllers, the ISL68301 is capable of complex Switching frequency range of 200kHz to 1.0MHz sequencing and fault spreading. The Digital-DC (DDC) bus is a single-wire serial bus which provides Proprietary single-wire DDC serial bus enables high performance inter-device communication without voltage sequencing and fault spreading with other the need for external sequencers, reducing overall system Renesas digital power ICs costs. Cycle-by-cycle inductor peak current protection The PMBus interface facilitates device configuration, Configurable fault protection for output voltage provides supply telemetry and detailed fault reporting UV/OV, input voltage UV/OV, internal and SPS including a parametric capture tool (SnapShot). All of temperature these features are conveniently accessible through the Cycle-by-cycle output current measurement with PowerNavigator software tool. Additionally, a wide adjustable gain settings for sensing with SPS current array of common configuration options are monitor or low DCR inductors independently configurable through use of pin-strap resistors. Dedicated telemetry ADC monitors input voltage, input current, output voltage, internal temperature, The ISL68301 supports a comprehensive fault and power stage temperature management system, with dedicated hardware support for cycle-by-cycle overcurrent, overvoltage, Nonvolatile memory (NVRAM) stores operating undervoltage, and temperature faults. The configurable parameters and fault events across POR cycles fault response system is capable of latching off or PMBus compliant. Supports 113 PMBus commands restarting the output on a fault-by-fault basis. Integrated LDOs for device and gate driver bias allow for single Compatible with Smart Power Stage (SPS) devices supply operation. Applications The ISL68301 drives a PWM output designed to be Servers and storage equipment paired with the Renesas family of Smart Power power Telecom and datacom equipment stages. Power supplies (FPGA, ASIC, DSP, memory) A companion device, the ISL68300, has built-in MOSFET driver circuitry which supports use with discrete output MOSFETs. Related Literature For a full list of related documents, visit our website ISL68301 product page FN8791 Rev.0.00 Page 1 of 121 Jun 7, 2018ISL68301 9 ,1 9 9 9 9* ,6/ 9&& ( 3+ 6 9 7 0 3: 0 3: (7966 :+96 3 ,6(1 1 9 3 ,6/ % 1& 6< : 1 ,6(1 ,1 5() (1 W VD6WX 3* (1396 & (1196 P ,6+ 5( * &) 6 * &) V %X30 6&/ 576 / 6*1 3*1 Figure 1. Wide Range Input and Output Applications FN8791 Rev.0.00 Page 2 of 121 Jun 7, 2018 && 39 3*1 9,1 75. 037( FDWLRQXQL&RP WHU FH HYL,Q RO DQGWU&RQ 21 70 21 70 ,02 9 9 28 %227 3 9 9