ISL8540EVAL1Z Intersil, ISL8540EVAL1Z Datasheet

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ISL8540EVAL1Z

Manufacturer Part Number
ISL8540EVAL1Z
Description
EVALUATION BOARD FOR ISL8540
Manufacturer
Intersil
Datasheets

Specifications of ISL8540EVAL1Z

Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
5V
Current - Output
2A
Voltage - Input
9 ~ 40V
Regulator Topology
Buck
Frequency - Switching
500kHz
Board Type
Fully Populated
Utilized Ic / Part
ISL8540
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
The ISL8540 is a step down DC/DC power switching
regulator which accepts a 9V to 40V input, and provides up
to 2A of output current. The output voltage can be set
between 1.21V and 35V by means of an external resistor
divider. The device uses an internal power DMOS transistor
with a typical r
and high switching speed. A switching frequency in the
range of 100kHz to 600kHz can be realized (the maximum
power dissipation of the various packages must be
observed). Notable features of this next generation DC/DC
converter include pulse-by-pulse current limit for FET
protection, hiccup-mode short circuit protection, voltage
feedforward, frequency SYNC, soft-start, low standby
current of 60µA typical in the disabled state and thermal
shut-down. The device is available in a 20 Ld HTSSOP
package.
Ordering Information
ISL8540IVEZ
ISL8540IVEZ-T* ISL85 40IVEZ -40 to +85 20 Ld HTSSOP MDP0048
ISL8540EVAL1Z Evaluation Board
*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.
NUMBER
(Note)
PART
DS(ON)
ISL85 40IVEZ -40 to +85 20 Ld HTSSOP MDP0048
MARKING
PART
of 0.19Ω to obtain very high efficiency
®
1
RANGE
TEMP.
(°C)
Application Note
ISL8540EVAL1Z: 2A High Voltage Buck Regulator
PACKAGE
(Pb-free)
1-888-INTERSIL or 1-888-468-3774
DWG. #
PKG.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Voltage feedforward
• Step down DC/DC supporting up to 2A
• Input voltage range of 9V to 40V
• Internal reference of 1.21V ±1%
• Adjustable output voltage range of 1.21V to 35V
• Adjustable switching frequency 100kHz to 600kHz
• Frequency SYNC pin
• Zero load current operation
• Pulse-by-pulse mode current limit
• Hiccup mode short-circuit protection
• Low standby current of 60µA typical
• Thermal shut-down
• Transient survival up at 60V for 400ms
• Pb-free (RoHS compliant)
Applications
• Industrial and automotive power supplies
• Portable computers
• Battery chargers
• Distributed power systems
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Pinouts
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
February 13, 2008
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
with Integrated MOSFETs
SGND
BOOT
SYNC
VCC5
RTCT
Copyright Intersil Americas Inc. 2007, 2008. All Rights Reserved
VIN
VIN
EN
LX
LX
10
1
2
3
4
5
6
7
8
9
(20 LD HTSSOP)
TOP VIEW
ISL8540
20
19
18
17
16
15
14
13
12
11
VIN
VIN
LX
LX
SS
PGND
PGOOD
REF
COMP
FB
AN1323.1

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ISL8540EVAL1Z Summary of contents

Page 1

... 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. 1 ISL8540EVAL1Z: 2A High Voltage Buck Regulator February 13, 2008 Features • Voltage feedforward • Step down DC/DC supporting • ...

Page 2

... Verify that the jumper JP1 is connected. 5. Apply a voltage between 9V and 40V across the input. 6. Verify that the output voltage is 5V. 2 Application Note 1323 Evaluating the Other Output Voltage The ISL8540EVAL1Z kit output is preset to 5V. The output voltage can be adjusted from 1.21V to 35V by Equation ⁄ ( ...

Page 3

Schematic ...

Page 4

... SULLINS CONN-JUMPER, 2 PIN, SHUNT, ROHS DIODES INC. DIODE-RECTIFIER, SMD, Power DI-5, 100V, 5A, ROHS, SCHOTTKY INTERSIL IC-STEP DOWN DC/DC CONVERTER, 20P, HTSSOP, ROHS RESISTOR, SMD, 0603, 20Ω, 1/10W, 1%, TF, ROHS RESISTOR, SMD, 0603, 10k, 1/16W, 1%, TF, ROHS RESISTOR, SMD, 0603, 16.2k, ...

Page 5

... ISL8540EVAL1Z Board Layout 5 Application Note 1323 ISL8540EVAL1Z Rev. B FIGURE 1. TOP COMPONENTS FIGURE 2. TOP LAYER ETCH AN1323.1 February 13, 2008 ...

Page 6

... ISL8540EVAL1Z Board Layout 6 Application Note 1323 (Continued) FIGURE 3. 2ND LAYER ETCH FIGURE 4. 3RD LAYER ETCH AN1323.1 February 13, 2008 ...

Page 7

... ISL8540EVAL1Z Board Layout Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that the Application Note or Technical Brief is current before proceeding. For information regarding Intersil Corporation and its products, see www.intersil.com ...

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