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ISL6219ACA Datasheet(PDF) 1 Page - Renesas Technology Corp

Part # ISL6219ACA
Description  Microprocessor CORE Voltage Regulator Precision Multi-Phase BUCK PWM Controller for Mobile Applications
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL6219ACA Datasheet(HTML) 1 Page - Renesas Technology Corp

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FN9093 Rev.1.00
Page 1 of 16
Mar 20, 2007
FN9093
Rev.1.00
Mar 20, 2007
ISL6219A
Microprocessor CORE Voltage Regulator Precision Multi-Phase BUCK PWM
Controller for Mobile Applications
DATASHEET
The ISL6219A provides core-voltage regulation by driving up
to three interleaved synchronous-rectified buck-converter
channels in parallel. Intersil multi-phase controllers together
with ISL6207 gate drivers form the basis for the most reliable
power-supply solutions available to power the latest
industry-leading microprocessors. Multi-phase buck-converter
architecture uses interleaved timing to multiply ripple
frequency and reduce input and output ripple currents. Lower
ripple results in lower total component cost, reduced
dissipation, and smaller implementation area. Pre-configured
for 3-phase operation, the ISL6219A offers the flexibility of
2-phase operation. Simply connect the unused PWM pin to
+5V. The channel switching frequency is adjustable in the
range of 100kHz to 1.5MHz giving the designer the ultimate
flexibility in managing the balance between high-speed
response and good thermal management.
New features on the ISL6219A include Dynamic-VID™
technology allowing seamless on-the-fly VID changes with
no need for any additional external components. When the
ISL6219A receives a new VID code, it incrementally steps
the output voltage to the new level. Dynamic VID™ changes
are fast and reliable with no output voltage overshoot or
undershoot.
Like other Intersil multiphase controllers, the ISL6219A uses
cost and space-saving rDS(ON) sensing for channel current
balance and dynamic voltage positioning. Channel current
balancing is automatic and accurate with the integrated
current-balance control system. Overcurrent protection can be
tailored to any application with no need of additional parts.
An integrated DAC decodes the 5-bit logic signal present at
VID0-VID4 and provides an accurate reference for precision
voltage regulation. The high-bandwidth error amplifier and
accurate voltage reference all work together to provide
better than 0.8% total system accuracy, and to enable the
fastest transient response available. A window comparator
toggles PGOOD if the output voltage moves out of range
and acts to protect the load in case of overvoltage.
Features
• Multi-Phase Power Conversion
• Active Channel Current Balancing
• Lossless current sense scheme
- Uses MOSFET’s rDS(ON)
- Optional current sense method for higher precision
• Precision CORE Voltage Regulation
-
0.8% System Accuracy Over Temperature
• Microprocessor Voltage Identification Input
- Dynamic VID technology
- 5-Bit VID Input
- 1.100V to 1.850V in 25mV Steps
• Programmable Droop Voltage
• Fast Transient Recovery Time
• Overvoltage, Undervoltage and Overcurrent Protection
• Power-Good Output
• 2 or 3 Phase Operation
• User selectable Switching Frequency of 100kHz to 1.5MHz
- 200kHz - 4.5MHz Effective Ripple Frequency
ISL6219A
(28 LD QSOP)
TOP VIEW
VID 0
VID 1
VID 2
VID 3
VID 4
NC
FS/EN
FB
COMP
GND
VCC
NC
NC
PGOOD
NC
ISEN1
PWM1
PWM2
ISEN2
ISEN3
PWM3
VSEN
NC
NC
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Ordering Information
PART NUMBER
PART MARKING
TEMP. RANGE (°C)
PACKAGE
PKG. DWG. #
ISL6219ACA*
ISL 6219ACA
-10 to +85
28 Ld QSOP
M28.15
ISL6219ACAZ* (Note)
ISL6219 ACAZ
-10 to +85
28 Ld QSOP (Pb-free)
M28.15
*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.


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