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ISL6526AIRZ

Description
Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; QFN16; Temp Range: -40° to 85°C
CategoryPower/power management    The power supply circuit   
File Size869KB,18 Pages
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
Related ProductsFound20parts with similar functions to ISL6526AIRZ
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ISL6526AIRZ Overview

Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; QFN16; Temp Range: -40° to 85°C

ISL6526AIRZ Parametric

Parameter NameAttribute value
Brand NameIntersil
MakerRenesas Electronics Corporation
Parts packaging codeQFN
package instructionHVQCCN, LCC16,.2SQ,32
Contacts16
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time6 weeks
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage3.63 V
Minimum input voltage2.97 V
Nominal input voltage3.3 V
JESD-30 codeS-PQCC-N16
JESD-609 codee3
length5 mm
Humidity sensitivity level3
Number of functions1
Number of terminals16
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current2 A
Package body materialPLASTIC/EPOXY
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC16,.2SQ,32
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1 mm
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency640 kHz
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn) - annealed
Terminal formNO LEAD
Terminal pitch0.8 mm
Terminal locationQUAD
Maximum time at peak reflow temperature30
width5 mm

ISL6526AIRZ Preview

NOT RECOMMENDED FOR NEW DESIGNS
RECOMMENDED REPLACEMENT PART
ISL8105
DATASHEET
FN9055
Rev 12.00
Sep 30, 2015
ISL6526, ISL6526A
Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
The ISL6526, ISL6526A make simple work out of
implementing a complete control and protection scheme for
a DC/DC stepdown converter. Designed to drive N-Channel
MOSFETs in a synchronous buck topology, the ISL6526,
ISL6526A integrate the control, output adjustment,
monitoring and protection functions into a single package.
The ISL6526, ISL6526A provide simple, single feedback
loop, voltage-mode control with fast transient response. The
output voltage can be precisely regulated to as low as 0.8V,
with a maximum tolerance of ±1.5% over-temperature and
line voltage variations. A fixed frequency oscillator reduces
design complexity, while balancing typical application cost
and efficiency.
The error amplifier features a 15MHz gain-bandwidth
product and 6V/µs slew rate which enables high converter
bandwidth for fast transient performance. The resulting
PWM duty cycles range from 0% to 100%.
Protection from overcurrent conditions is provided by
monitoring the r
DS(ON)
of the upper MOSFET to inhibit PWM
operation appropriately. This approach simplifies the
implementation and improves efficiency by eliminating the
need for a current sense resistor.
Features
• Operates from 3.3V to 5V Input
• 0.8V to V
IN
Output Range
- 0.8V Internal Reference
- ±1.5% Over Load, Line Voltage and Temperature
• Drives N-Channel MOSFETs
• Simple Single-Loop Control Design
- Voltage-Mode PWM Control
• Fast Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Cycle
• Lossless, Programmable Overcurrent Protection
- Uses Upper MOSFET’s r
DS(on)
• Converter can Source and Sink Current
• Small Converter Size
- Internal Fixed Frequency Oscillator
- ISL6526: 300kHz
- ISL6526A: 600kHz
• Internal Soft-Start
• 14 Ld SOIC or 16 Ld 5x5 QFN
• QFN Package:
- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat
No Leads - Package Outline
- Near Chip Scale Package Footprint, which Improves
PCB Efficiency and has a Thinner Profile
• Pb-Free (RoHS Compliant)
Applications
• Power Supplies for Microprocessors
- PCs
- Embedded Controllers
• Subsystem Power Supplies
- PCI/AGP/GTL+ Buses
- ACPI Power Control
- DDR SDRAM Bus Termination Supply
• Cable Modems, Set-Top Boxes, and DSL Modems
• DSP and Core Communications Processor Supplies
• Memory Supplies
• Personal Computer Peripherals
• Industrial Power Supplies
• 3.3V-Input DC/DC Regulators
• Low-Voltage Distributed Power Supplies
FN9055 Rev 12.00
Sep 30, 2015
Page 1 of 18
ISL6526, ISL6526A
Ordering Information
PART NUMBER
(Notes 2, 3)
ISL6526CBZ
ISL6526CBZ-T (Note 1)
PART
MARKING
6526CBZ
6526CBZ
TEMP
RANGE (°C)
0 to +70
0 to +70
0 to +70
PACKAGE
14 Ld SOIC (Pb-free)
14 Ld SOIC (Pb-free)
14 Ld SOIC (Pb-free)
PKG
DWG. #
M14.15
M14.15
M14.15
ISL6526ACBZ
(No longer available,
6526ACBZ
recommended replacement:
ISL6526AIRZ)
ISL6526ACBZ-T (Note 1)
(No longer
6526ACBZ
available, recommended
replacement: ISL6526AIRZ-T)
ISL6526CRZ
(No longer available,
recommended replacement:
ISL6526IRZ)
ISL6526CRZ-T (Note 1)
(No longer
available, recommended
replacement: ISL6526IRZ-T)
ISL6526IBZ
ISL6526IBZ-T (Note 1)
ISL6526IRZ
ISL6526IRZ-T (Note 1)
ISL6526IRZ-TK (Note 1)
ISL6526AIRZ
ISL6526AIRZ-T (Note 1)
ISL6526AIRZ-TK (Note 1)
ISL6526EVAL1
ISL6526EVAL2
ISL6526AEVAL1
ISL6526AEVAL2
NOTES:
1. Please refer to
TB347
for details on reel specifications.
ISL6526 CRZ
0 to +70
14 Ld SOIC (Pb-free)
M14.15
0 to +70
16 Ld 5x5 QFN (Pb-free)
L16.5x5B
ISL6526 CRZ
0 to +70
16 Ld 5x5 QFN (Pb-free)
L16.5x5B
6526IBZ
6526IBZ
ISL 6526IRZ
ISL 6526IRZ
ISL 6526IRZ
ISL65 26AIRZ
ISL65 26AIRZ
ISL65 26AIRZ
ISL6526 SOIC Evaluation Board
ISL6526 QFN Evaluation Board
ISL6526A SOIC Evaluation Board
ISL6526A QFN Evaluation Board
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
14 Ld SOIC (Pb-free)
14 Ld SOIC (Pb-free)
16 Ld 5x5 QFN (Pb-free)
16 Ld 5x5 QFN (Pb-free)
16 Ld 5x5 QFN (Pb-free)
16 Ld 5x5 QFN (Pb-free)
16 Ld 5x5 QFN (Pb-free)
16 Ld 5x5 QFN (Pb-free)
M14.15
M14.15
L16.5x5B
L16.5x5B
L16.5x5B
L16.5x5B
L16.5x5B
L16.5x5B
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is 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.
3. For Moisture Sensitivity Level (MSL), please see device information page for
ISL6526, ISL6526A.
For more information on MSL please see tech
brief
TB363.
FN9055 Rev 12.00
Sep 30, 2015
Page 2 of 18
ISL6526, ISL6526A
Pinouts
ISL6526, ISL6526A
(14 LD SOIC)
TOP VIEW
GND 1
LGATE 2
CPVOUT 3
CT1 4
CT2 5
OCSET 6
FB 7
14 UGATE
13 BOOT
12 PHASE
11 VCC
10 CPGND
9 ENABLE
8 COMP
OCSET
4
5
NC
6
FB
7
COMP
8
ENABLE
9
NC
CPVOUT
CT1
CT2
1
2
3
ISL6526, ISL6526A
(16 LD QFN)
TOP VIEW
UGATE
14
LGATE
BOOT
13
12 PHASE
11 VCC
10 CPGND
GND
15
16
FN9055 Rev 12.00
Sep 30, 2015
Page 3 of 18
ISL6526, ISL6526A
Typical Application - 3.3V Input
3.3V
V
IN
C
IN
C
BULK
OCSET
R
OCSET
CPVOUT
ISL6526, ISL6526A
BOOT
C
BOOT
UGATE
PHASE
ENABLE
DISABLE
COMP
LGATE
FB
Q
1
L
OUT
VCC
CT1
C
PUMP
CT2
D
BOOT
C
DCPL
C
HF
CPGND
GND
V
OUT
Q
2
C
OUT
C
I
R
FB
R
F
C
F
R
OFFSET
Typical Application - 5V Input
+5V
V
IN
VCC
CT1
OCSET
R
OCSET
CPVOUT
N/C
CT2
C
BULK
ISL6526, ISL6526A
BOOT
D
BOOT
C
IN
C
HF
CPGND
GND
C
BOOT
UGATE
PHASE
Q
1
L
OUT
V
OUT
ENABLE
DISABLE
COMP
LGATE
FB
Q
2
C
OUT
C
I
R
FB
R
F
C
F
R
OFFSET
FN9055 Rev 12.00
Sep 30, 2015
Page 4 of 18
ISL6526, ISL6526A
Block Diagram
VCC
CPVOUT
CT1
CT2
CPGND
OCSET
20µA
CHARGE
PUMP
POWER-ON
RESET (POR)
ENABLE
OC
COMPARATOR
+
-
BOOT
SOFT-START
UGATE
PHASE
ERROR
AMP
+
-
PWM
COMPARATOR
+
-
INHIBIT
+
0.8V
-
GATE
CONTROL
LOGIC
PWM
LGATE
FB
OSCILLATOR
COMP
FIXED 300kHz OR 600kHz
GND
FN9055 Rev 12.00
Sep 30, 2015
Page 5 of 18

ISL6526AIRZ Related Products

ISL6526AIRZ ISL6526AIRZ-TK ISL6526AIRZ-T ISL6526IRZ-T ISL6526IRZ-TK
Description Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; QFN16; Temp Range: -40° to 85°C Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; QFN16; Temp Range: -40° to 85°C Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; QFN16; Temp Range: -40° to 85°C Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; QFN16, SOIC14; Temp Range: See Datasheet Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; QFN16, SOIC14; Temp Range: See Datasheet
Brand Name Intersil Intersil Intersil Intersil Intersil
Maker Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation
Parts packaging code QFN QFN QFN QFN, SOIC QFN, SOIC
package instruction HVQCCN, LCC16,.2SQ,32 HVQCCN, LCC16,.2SQ,32 HVQCCN, LCC16,.2SQ,32 HVQCCN, LCC16,.2SQ,32 VQCCN, LCC16,.2SQ,32
Contacts 16 16 16 16, 14 16, 14
Reach Compliance Code compliant compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99
Factory Lead Time 6 weeks 6 weeks 6 weeks 6 weeks 6 weeks
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 3.63 V 3.465 V 3.63 V 3.63 V 3.465 V
Minimum input voltage 2.97 V 3.135 V 2.97 V 2.97 V 3.135 V
Nominal input voltage 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V
JESD-30 code S-PQCC-N16 S-PQCC-N16 S-PQCC-N16 S-PQCC-N16 S-PQCC-N16
JESD-609 code e3 e3 e3 e3 e3
length 5 mm 5 mm 5 mm 5 mm 5 mm
Humidity sensitivity level 3 3 3 3 3
Number of functions 1 1 1 1 1
Number of terminals 16 16 16 16 16
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HVQCCN HVQCCN HVQCCN HVQCCN VQCCN
Encapsulate equivalent code LCC16,.2SQ,32 LCC16,.2SQ,32 LCC16,.2SQ,32 LCC16,.2SQ,32 LCC16,.2SQ,32
Package shape SQUARE SQUARE SQUARE SQUARE SQUARE
Package form CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER
Peak Reflow Temperature (Celsius) 260 260 260 260 260
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1 mm 1 mm 1 mm 1 mm 1 mm
surface mount YES YES YES YES YES
Switch configuration PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL BUCK
Maximum switching frequency 640 kHz 640 kHz 640 kHz 340 kHz 340 kHz
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed
Terminal form NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD
Terminal pitch 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm
Terminal location QUAD QUAD QUAD QUAD QUAD
Maximum time at peak reflow temperature 30 40 40 40 NOT SPECIFIED
width 5 mm 5 mm 5 mm 5 mm 5 mm
Maximum output current 2 A - 2 A 2 A -

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