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ISL6549CAZAS2698

Description
Switching Controllers W/ANNEAL SINGLE 12V SUPPLY DLG 16LD Q
Categorysemiconductor    Power management   
File Size843KB,18 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
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ISL6549CAZAS2698 Overview

Switching Controllers W/ANNEAL SINGLE 12V SUPPLY DLG 16LD Q

ISL6549CAZAS2698 Parametric

Parameter NameAttribute value
Product CategorySwitching Controllers
ManufacturerIntersil ( Renesas )
RoHSDetails
PackagingTube
Moisture SensitiveYes
Factory Pack Quantity98
DATASHEET
ISL6549
Single 12V Input Supply Dual Regulator —Synchronous Rectified Buck PWM and
Linear Power Controller
The ISL6549 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 controller is
ideal for applications where regulation of both the processing
unit and memory supplies is required.
The synchronous rectified buck converter incorporates
simple, single feedback loop, voltage-mode control with fast
transient response. Both the switching regulator and linear
regulator provide a maximum static regulation tolerance of
±
1% over line, load, and temperature ranges. Each output is
user-adjustable by means of external resistors.
An integrated soft-start feature brings both supplies into
regulation in a controlled manner. Each output is monitored
via the FB pins for undervoltage events. If either output drops
below 75% of the nominal output level, both converters are
shut off and go into retry mode.
The ISL6549 is available in a 14 Ld SOIC package,
16 Ld QSOP, or 16 Ld 4x4 QFN packages.
Rev X.00
Features
• Single 12V bias supply (no 5V supply is required)
• Provides two regulated voltages
- One synchronous rectified buck PWM controller
- One linear controller
• Both controllers drive low cost N-Channel MOSFETs
• Small converter size
- Adjustable frequency 150kHz to 1MHz
- Small external component count
• Excellent output voltage regulation
- Both outputs: ±1% over temperature
• 12V down conversion
• PWM and linear output voltage range: down to 0.8V
• Simple single-loop voltage-mode PWM control design
• Fast PWM converter transient response
- High-bandwidth error amplifier
• Undervoltage fault monitoring on both outputs
• Pb-free plus anneal available (RoHS compliant)
Related Literature
• Technical Brief TB363
Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)
Applications
• Processor and memory supplies
• ASIC power supplies
• Embedded processor and I/O supplies
• DSP supplies
Ordering Information
PART NUMBER
ISL6549CB
ISL6549CBZ (Note)
ISL6549CR
ISL6549CRZ (Note)
ISL6549CA
ISL6549CAZ (Note)
ISL6549CAZA (Note)
ISL6549IBZ (Note)
ISL6549IRZ (Note)
ISL6549IAZ (Note)
ISL6549LOW-EVAL1
ISL6549HI-EVAL1
Add “-T” suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets, molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
PART MARKING
ISL6549CB
6549CBZ
ISL6549CR
6549CRZ
ISL6549CA
6549CAZ
6549CAZ
6549IBZ
6549IRZ
6549IAZ
Evaluation Board 1-5A
Evaluation Board up to 20A
TEMP. RANGE (°C)
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
-40 to 85
-40 to 85
-40 to 85
14 Ld SOIC
14 Ld SOIC (Pb-free)
16 Ld 4x4 QFN
16 Ld 4x4 QFN (Pb-free)
16 Ld QSOP
16 Ld QSOP (Pb-free)
16 Ld QSOP (Pb-free)
14 Ld SOIC (Pb-free)
16 Ld 4x4 QFN (Pb-free)
16 Ld QSOP (Pb-free)
PACKAGE
PKG. DWG. #
M14.15
M14.15
L16.4x4
L16.4x4
M16.15A
M16.15A
M16.15A
M14.15
L16.4x4
M16.15A
Rev X.00
Page 1 of 18

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Description Switching Controllers W/ANNEAL SINGLE 12V SUPPLY DLG 16LD Q Switching Controllers SINGLE 12V SUPPLY DLG 16LD 4X4 Switching Controllers W/ANNEAL SINGLE 12V SUPPLY DLG 16LD QS
Product Category Switching Controllers Switching Controllers Switching Controllers Switching Controllers
Manufacturer Intersil ( Renesas ) Intersil ( Renesas ) Intersil ( Renesas ) Intersil ( Renesas )
RoHS Details Details Details Details
Moisture Sensitive Yes Yes Yes Yes
Factory Pack Quantity 98 75 6000 2500
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