ISL8104 Synchronous Buck Pulse-Width Modulator (PWM) Controller

VIN (min) (V)	1
VIN (max) (V)	12
VOUT (min) (V)	0.6
VOUT (max) (V)	5
IOUT (max) (A)	25

The ISL8104 is a 8V to 14V synchronous PWM controller with integrated MOSFET drivers. The controller features the ability to safely start-up into prebiased output loads and provides protection against overcurrent fault events. Overcurrent protection is implemented using top-side MOSFET rDS(ON) sensing, eliminating the need for a current sensing resistor.

The ISL8104 employs voltage-mode control with dual-edge modulation to achieve fast transient response. The operating frequency is adjustable from 50kHz to 1.5MHz with full (0% to 100%) PWM duty cycle capability. The error amplifier features a 15MHz (typ) gain-bandwidth product and 6V/μs slew rate enabling high converter bandwidth.

The output voltage of the converter can be regulated to as low as 0.597V with a tolerance of ±1.0% over the commercial temperature range (0°C to +70°C), and ±1.5% over industrial temperature range (-40°C to +85°C). Provided in the QFN package, a SS pin and REFIN pin enable supply sequencing and voltage tracking functionality.

ISL8104 特点

+8V ±5% to +14V ±10% Bias Voltage Range
- 1.5V to 15.4V Input Voltage Range
0.597V Internal Reference Voltage
- ±1.0% Over the Commercial Temperature Range
- ±1.5% Over the Industrial Temperature Range
Voltage-Mode PWM Control with Dual-Edge Modulation
14V High Speed N-Channel MOSFET Gate Drivers
- 2.0A Source/3A Sink at 14V Bottom-Side Gate Drive
- 1.25A Source/2A Sink at 14V Top-Side Gate Drive
Fast Transient Response
- 15MHz (typ) Gain-Bandwidth Error Amplifier with 6V/μs slew rate
- Full 0% to 100% Duty Cycle Support
Programmable Operating Frequency from 50kHz to 1.5MHz
Lossless Programmable Overcurrent Protection
- Top-Side MOSFET's rDS(ON) Sensing
- ~120ns Blanking Time
Sourcing and Sinking Current Capability
Support for Start-Up into Prebiased Loads
Soft-Start Done and an External Reference Pin for Tracking Applications are Available in the QFN Package
Pb-free available (RoHS compliant)

ISL8104 应用

Test and Measurement Instruments
Distributed DC/DC Power Architecture
Industrial Applications
Telecom/Datacom Applications

ISL8104 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL8104CBZ	量产	民用级	14 Ld SOIC	2	1.66
ISL8104CBZ-T	量产	民用级	14 Ld SOIC T+R	2	1.66
ISL8104CRZ	量产	民用级	16 Ld QFN	2	1.39
ISL8104CRZ-T	量产	民用级	16 Ld QFN T+R	2	1.39
ISL8104EVAL1Z	量产		评估板	N/A	价格录入中
ISL8104IBZ	量产	工业级	14 Ld SOIC	2	1.35
ISL8104IBZ-T	量产	工业级	14 Ld SOIC T+R	2	1.35
ISL8104IRZ	量产	工业级	16 Ld QFN	2	1.41
ISL8104IRZ-T	量产	工业级	16 Ld QFN T+R	2	1.41