Renesas ISL8560EVAL2Z User Manual
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Renesas ISL8560EVAL2Z User Manual

Renesas ISL8560EVAL2Z User Manual

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ISL8560EVAL2Z

Evaluation Board

The ISL8560 is a step down DC/DC power switching
regulator which accepts a 9V to 60V 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
of 0.19 to obtain very high efficiency
DS(ON)
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 QFN package.

Ordering Information

PART
NUMBER
PART
(Note)
MARKING
ISL8560IRZ
ISL 8560IRZ -40 to +85 20 Ld 6x6 QFN L20.6x6B
ISL8560IRZ-T*
ISL 8560IRZ -40 to +85 20 Ld 6x6 QFN L20.6x6B
ISL8560EVAL2Z 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.
AN1324 Rev 3.00
February 13, 2008
TEMP.
RANGE
PACKAGE
PKG.
(°C)
(Pb-free)
DWG. #
USER'S MANUAL
Features
• Voltage feedforward
• Step down DC/DC supporting up to 2A
• Input voltage range of 9V to 60V
• 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 100V 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
Processing Moisture Sensitive Surface Mount Devices
(SMDs)"
Pinouts
ISL8560
(20 LD QFN)
TOP VIEW
20
19
LX
1
LX
2
3
BOOT
4
EN
5
VCC5
6
7
AN1324
Rev 3.00
February 13, 2008
18
17
16
15
LX
14
SS
13
PGND
12
PGOOD
11
REF
8
9
10
Page 1 of 8

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Summary of Contents for Renesas ISL8560EVAL2Z

  • Page 1: Evaluation Board

    ISL 8560IRZ -40 to +85 20 Ld 6x6 QFN L20.6x6B ISL8560IRZ-T* ISL 8560IRZ -40 to +85 20 Ld 6x6 QFN L20.6x6B Applications ISL8560EVAL2Z Evaluation Board • Industrial and automotive power supplies *Please refer to TB347 for details on reel specifications. • Portable computers NOTE: These Intersil Pb-free plastic packaged products employ •...

  • Page 2: What's Inside

    ISL8560EVAL2Z What’s Inside Evaluating the Other Output Voltage The ISL8560EVAL2Z kit output is preset to 5V. The output The Evaluation Board Kit contains the following materials: voltage can be adjusted from 1.21V to 55V by Equation 1: • The ISL8560EVAL2Z REVB board.
  • Page 3 Schematic...
  • Page 4 ISL8560EVAL2Z TABLE 2. COMPONENT LIST REF DES QTY VALUE TOL. VOLTAGE PACKAGE PART NUMBER MANUFACTURER DESCRIPTION C5, C10, C11 0.10µF 10% 0603 C1608X7R1H104K-T CAPACITOR, SMD, 0603, 0.10µF, 50V, 10%, X7R C12-C14 150µF 20% 8mmx10mm EEE-FK1E151P-T PANASONIC CAPACITOR, SMD, 10.3mm, 150µF, 25V, 20%, ROHS, ALUM.
  • Page 5 ISL8560EVAL2Z ISL8560EVAL2Z Board Layout FIGURE 1. TOP COMPONENTS FIGURE 2. TOP LAYER ETCH AN1324 Rev 3.00 Page 5 of 8 February 13, 2008...
  • Page 6 ISL8560EVAL2Z ISL8560EVAL2Z Board Layout (Continued) FIGURE 3. 2ND LAYER ETCH FIGURE 4. 3RD LAYER ETCH AN1324 Rev 3.00 Page 6 of 8 February 13, 2008...
  • Page 7 ISL8560EVAL2Z ISL8560EVAL2Z Board Layout (Continued) FIGURE 5. BOTTOM LAYER COMPONENTS (MIRRORED) FIGURE 6. BOTTOM LAYER ETCH (MIRRORED) AN1324 Rev 3.00 Page 7 of 8 February 13, 2008...

  • Page 8: Sales Offices

    10. It is the responsibility of the buyer or distributor of Renesas Electronics products, or any other party who distributes, disposes of, or otherwise sells or transfers the product to a third party, to notify such third party in advance of the contents and conditions set forth in this document.

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