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ISL6526AIBZ-T

Description
2A SWITCHING CONTROLLER, 640kHz SWITCHING FREQ-MAX, PDSO14, ROHS COMPLIANT, PLASTIC, MS-012-AB, SOIC-14
CategoryPower/power management    The power supply circuit   
File Size306KB,15 Pages
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
Environmental Compliance
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ISL6526AIBZ-T Overview

2A SWITCHING CONTROLLER, 640kHz SWITCHING FREQ-MAX, PDSO14, ROHS COMPLIANT, PLASTIC, MS-012-AB, SOIC-14

ISL6526AIBZ-T Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerRenesas Electronics Corporation
Parts packaging codeSOIC
package instructionSOP, SOP14,.25
Contacts14
Reach Compliance Codecompliant
ECCN codeEAR99
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 codeR-PDSO-G14
JESD-609 codee3
length8.65 mm
Humidity sensitivity level3
Number of functions1
Number of terminals14
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current2 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP14,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.75 mm
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency640 kHz
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width3.9 mm

ISL6526AIBZ-T Preview

®
ISL6526, ISL6526A
Data Sheet
November 24, 2008
FN9055.10
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
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2001-2005, 2007, 2008. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
ISL6526, ISL6526A
Ordering Information
PART NUMBER
(Note)
ISL6526CBZ
ISL6526CBZ-T*
ISL6526ACBZ
ISL6526ACBZ-T*
ISL6526CRZ
ISL6526CRZ-T*
ISL6526ACRZ
ISL6526ACRZ-T*
ISL6526IBZ
ISL6526IBZ-T*
ISL6526AIBZ
ISL6526AIBZ -T*
ISL6526IRZ
ISL6526IRZ-T*
ISL6526IRZ-TK*
ISL6526AIRZ
ISL6526AIRZ-T*
ISL6526AIRZ-TK*
ISL6526EVAL1
ISL6526EVAL2
ISL6526AEVAL1
ISL6526AEVAL2
PART
MARKING
6526CBZ
6526CBZ
6526ACBZ
6526ACBZ
ISL6526 CRZ
ISL6526 CRZ
ISL6526 ACRZ
ISL6526 ACRZ
6526IBZ
6526IBZ
6526AIBZ
6526AIBZ
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
TEMP
RANGE (°C)
0 to +70
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
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
PACKAGE
14 Ld SOIC (Pb-free)
14 Ld SOIC (Pb-free)
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)
14 Ld SOIC (Pb-free)
14 Ld SOIC (Pb-free)
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)
PKG
DWG. #
M14.15
M14.15
M14.15
M14.15
L16.5x5B
L16.5x5B
L16.5x5B
L16.5x5B
M14.15
M14.15
M14.15
M14.15
L16.5x5B
L16.5x5B
L16.5x5B
L16.5x5B
L16.5x5B
L16.5x5B
*Please refer to TB347 for details on reel specifications.
NOTE: 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.
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
12 PHASE
11 VCC
10 CPGND
ISL6526, ISL6526A
(16 LD QFN)
TOP VIEW
UGATE
14
LGATE
BOOT
13
GND
15
16
2
FN9055.10
November 24, 2008
ISL6526, ISL6526A
Typical Application - 3.3V Input
3.3V
V
IN
C
IN
C
BULK
OCSET
R
OCSET
C
PUMP
CT2
CPVOUT
ISL6526, ISL6526A
BOOT
C
BOOT
UGATE
PHASE
ENABLE
DISABLE
COMP
Q
1
L
OUT
VCC
CT1
D
BOOT
C
DCPL
C
HF
CPGND
GND
V
OUT
LGATE
FB
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
3
FN9055.10
November 24, 2008
ISL6526, ISL6526A
Block Diagram
VCC
CPVOUT
CT1
CT2
CPGND
OCSET
20µA
CHARGE
PUMP
POWER-ON
RESET (POR)
ENABLE
BOOT
OC
COMPARATOR
+
-
SOFT-START
UGATE
PHASE
ERROR
AMP
+
-
PWM
COMPARATOR
+
-
INHIBIT
+
0.8V
-
GATE
CONTROL
LOGIC
PWM
LGATE
FB
OSCILLATOR
COMP
FIXED 300kHz OR 600kHz
GND
4
FN9055.10
November 24, 2008
ISL6526, ISL6526A
Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.0V
Absolute Boot Voltage, V
BOOT
. . . . . . . . . . . . . . . . . . . . . . . +15.0V
Upper Driver Supply Voltage, V
BOOT
- V
PHASE
. . . . . . . . . . . +7.0V
Input, Output or I/O Voltage . . . . . . . . . . . GND -0.3V to VCC +0.3V
Thermal Information
Thermal Resistance
θ
JA
(°C/W)
θ
JC
(°C/W)
SOIC Package (Note 1) . . . . . . . . . . . .
67
N/A
QFN Package (Notes 2, 3). . . . . . . . . .
35
5
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Operating Conditions
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.3V ±10%
Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2.
θ
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
3. For
θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
PARAMETER
VCC SUPPLY CURRENT
Nominal Supply
POWER-ON RESET
Rising CPVOUT POR Threshold
Recommended Operating Conditions, unless otherwise noted V
CC
= 3.3V ±5% and T
A
= +25°C.
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
I
BIAS
6.1
6.9
7.7
mA
POR
Commercial
Industrial
4.25
4.10
0.3
4.30
4.30
0.6
4.42
4.50
0.9
V
V
V
CPVOUT POR Threshold Hysteresis
OSCILLATOR
Frequency
f
OSC
IC = ISL6526C, Commercial
IC = ISL6526I, Industrial
IC = ISL6526AC, Commercial
IC = ISL6526AI, Industrial
Ramp Amplitude
REFERENCE
Reference Voltage Tolerance
Nominal Reference Voltage
CHARGE PUMP
Nominal Charge Pump Output
Charge Pump Output Regulation
ERROR AMPLIFIER
DC Gain
Gain-Bandwidth Product
Slew Rate
SOFT-START
Soft-Start Slew Rate
Commercial
Industrial
GBWP
SR
(Note 4)
V
CPVOUT
V
VCC
= 3.3V, No Load
V
REF
ΔV
OSC
275
250
554
524
-
300
300
600
600
1.5
325
340
645
650
-
kHz
kHz
kHz
kHz
V
P-P
-
-
-
0.800
1.5
-
%
V
-
-
5.1
2
-
-
V
%
-
-
-
88
15
6
-
-
-
dB
MHz
V/µs
6.2
6.2
-
-
7.3
7.6
ms
ms
5
FN9055.10
November 24, 2008

ISL6526AIBZ-T Related Products

ISL6526AIBZ-T ISL6526AIBZ ISL6526ACRZ-T ISL6526ACRZ
Description 2A SWITCHING CONTROLLER, 640kHz SWITCHING FREQ-MAX, PDSO14, ROHS COMPLIANT, PLASTIC, MS-012-AB, SOIC-14 2A SWITCHING CONTROLLER, 640kHz SWITCHING FREQ-MAX, PDSO14, ROHS COMPLIANT, PLASTIC, MS-012-AB, SOIC-14 2A SWITCHING CONTROLLER, 625kHz SWITCHING FREQ-MAX, PQCC16, 5 X 5 MM, PLASTIC, MO-220-VHHB, QFN-16 2A SWITCHING CONTROLLER, 625kHz SWITCHING FREQ-MAX, PQCC16, 5 X 5 MM, PLASTIC, MO-220-VHHB, QFN-16
Is it Rohs certified? conform to conform to conform to conform to
Maker Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation
Parts packaging code SOIC SOIC QFN QFN
package instruction SOP, SOP14,.25 SOP, SOP14,.25 HVQCCN, LCC16,.20SQ,32 HVQCCN, LCC16,.20SQ,32
Contacts 14 14 16 16
Reach Compliance Code compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 3.63 V 3.63 V 3.63 V 3.63 V
Minimum input voltage 2.97 V 2.97 V 2.97 V 2.97 V
Nominal input voltage 3.3 V 3.3 V 3.3 V 3.3 V
JESD-30 code R-PDSO-G14 R-PDSO-G14 S-PQCC-N16 S-PQCC-N16
JESD-609 code e3 e3 e3 e3
length 8.65 mm 8.65 mm 5 mm 5 mm
Humidity sensitivity level 3 3 3 3
Number of functions 1 1 1 1
Number of terminals 14 14 16 16
Maximum operating temperature 85 °C 85 °C 70 °C 70 °C
Maximum output current 2 A 2 A 2 A 2 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP HVQCCN HVQCCN
Encapsulate equivalent code SOP14,.25 SOP14,.25 LCC16,.20SQ,32 LCC16,.20SQ,32
Package shape RECTANGULAR RECTANGULAR SQUARE SQUARE
Package form SMALL OUTLINE SMALL OUTLINE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) 260 260 260 260
Certification status Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.75 mm 1.75 mm 1 mm 1 mm
surface mount YES YES YES YES
Switch configuration PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL
Maximum switching frequency 640 kHz 640 kHz 625 kHz 625 kHz
Temperature level INDUSTRIAL INDUSTRIAL COMMERCIAL COMMERCIAL
Terminal surface Matte Tin (Sn) Matte Tin (Sn) MATTE TIN TIN
Terminal form GULL WING GULL WING NO LEAD NO LEAD
Terminal pitch 1.27 mm 1.27 mm 0.8 mm 0.8 mm
Terminal location DUAL DUAL QUAD QUAD
Maximum time at peak reflow temperature 40 40 40 40
width 3.9 mm 3.9 mm 5 mm 5 mm
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