ISL6549CB

Dual Regulator, 14-SOIC, 150kHz ~ 1MHz, 4.75 V ~ 5.25 V, ISL6549CB, Intersil

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Price:: US $0.40~1.00 / piece [Get Latest Price]

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PartNumber:: ISL6549CB

Brand:: Intersil Corporation - Intersil | Pack: DIP | D/C: 09+

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Products Upload time: 2012-02-29

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Product Summary

The ISL6549CB is a Single 12V Input Supply Dual Regulator. The ISL6549CB provides the power control and protection for two output voltages in high-performance applications. The dual-output controller drives two N-Channel MOSFETs in a synchronous rectified buck converter topology and one N-Channel MOSFET in a linear configuration. The ISL6549CB is ideal for applications where regulation of both the processing unit and memory supplies is required. The applications of the ISL6549CB include Processor and memory supplies, ASIC power supplies, Embedded processor and I/O supplies and DSP supplies.

Parametrics

ISL6549CB absolute maximum ratings: (1)VCC12: GND - 0.3V to +14V; (2)PVCC5, VCC5: GND - 0.3V to +7V; (3)VCC5 (if used with external supply: GND - 0.3V to +6V; (4)BOOT: GND - 0.3V to +27V; (5)PHASE: VBOOT - 7V to VBOOT + 0.3V; (6)VBOOT - VPHASE: +7V; (7)UGATE: VPHASE - 0.3V to VBOOT + 0.3V; (8)LGATE: GND - 0.3V to PVCC5 + 0.3V; (9)LDO_DR: GND - 0.3V to VCC12 + 0.3V; (10)FB, LDO_FB, COMP, FS_DIS: GND - 0.3V to VCC5 + 0.3V.

Features

ISL6549CB features: (1)Single 12V bias supply (no 5V supply is required); (2)Provides two regulated voltages: One synchronous rectified buck PWM controller; One linear controller; (3)Both controllers drive low cost N-Channel MOSFETs; (4)Small converter size: Adjustable frequency 150kHz to 1MHz; Small external component count; (5)Excellent output voltage regulation: Both outputs: ±1% over temperature; (6)12V down conversion; (7)PWM and linear output voltage range: down to 0.8V; (8)Simple single-loop voltage-mode PWM control design; (9)Fast PWM converter transient response: High-bandwidth error amplifier; (10)Undervoltage fault monitoring on both outputs; (11)Pb-free plus anneal available (RoHS compliant).