ISL8560IRZ Intersil, ISL8560IRZ Datasheet

IC REG 2A DC/DC STEP-DN 20-QFN

ISL8560IRZ

Manufacturer Part Number
ISL8560IRZ
Description
IC REG 2A DC/DC STEP-DN 20-QFN
Manufacturer
Intersil
Type
Step-Down (Buck)r
Datasheet

Specifications of ISL8560IRZ

Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
1.21 ~ 55 V
Current - Output
2A
Frequency - Switching
100kHz ~ 600kHz
Voltage - Input
9 ~ 60 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
Power - Output
3W
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL8560IRZ
Manufacturer:
Intersil
Quantity:
48
Part Number:
ISL8560IRZ
Manufacturer:
Intersil
Quantity:
135
DC/DC Power Switching Regulator
The ISL8560 is a step down DC/DC power switching
regulator which accepts 9.0V to 60V input and provides a 2A
output current. The output voltage can be set in the range
between 1.21V and 55V by means of an external divider.
The device uses an internal power DMOS transistor with a
typical r
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 of DC/DC converter
includes pulse-by-pulse current limit for FET protection,
hiccup mode for short circuit protection, voltage feedforward
regulation, 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
ISL8560IRZ
ISL8560IRZ-T* ISL 8560IRZ -40 to +85 20 Ld 6x6 QFN L20.6x6B
*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)
ISL 8560IRZ -40 to +85 20 Ld 6x6 QFN L20.6x6B
of 0.19Ω to obtain very high efficiency and
MARKING
PART
®
RANGE
TEMP.
(°C)
1
Data Sheet
PACKAGE
(Pb-Free)
DWG. #
1-888-INTERSIL or 1-888-468-3774
PKG.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Voltage feedforward mode
• Step down DC/DC supporting up to 2A
• Input voltage range of 9.0V to 60V
• Internal reference of 1.21V ±1%
• Adjustable output voltage range of 1.21V to 55V
• Adjustable switching frequency 100kHz to 600kHz
• Frequency SYNC pin
• Zero load current operation
• Pulse-by-pulse mode current limit and Hiccup mode
• Low standby current of 60µA typical
• Thermal shut-down
• Load dump to 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
Pinout
September 19, 2008
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
BOOT
All other trademarks mentioned are the property of their respective owners.
VCC5
|
EN
LX
LX
Intersil (and design) is a registered trademark of Intersil Americas Inc.
1
2
3
4
5
Copyright Intersil Americas Inc. 2007, 2008. All Rights Reserved
20
6
(20 LD QFN)
19
7
TOP VIEW
ISL8560
18
8
17
9
16
10
15
14
13
12
11
ISL8560
LX
SS
PGND
PGOOD
REF
FN9244.7

Related parts for ISL8560IRZ

ISL8560IRZ Summary of contents

Page 1

... MARKING (°C) ISL8560IRZ ISL 8560IRZ - 6x6 QFN L20.6x6B ISL8560IRZ-T* ISL 8560IRZ - 6x6 QFN L20.6x6B *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) ...

Page 2

... QFN Package Maximum Power Dissipation Maximum Junction Temperature (Hermetic Package or Die +150°C Maximum Junction Temperature (Plastic Package +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 = 48V 5.0V OUT SYMBOL TEST CONDITIONS ...

Page 3

Electrical Specifications Unless otherwise specified the specifications listed in the table are tested at T full Temperature Range, V with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not ...

Page 4

Pin Descriptions LX (Pins 1, 2, 15, 16) There are four output pins that must be connected together externally in normal operation. BOOT (Pin 3) A capacitor is connected from this pin to the output pin. An internal 10V supply ...

Page 5

REF SS SO FT- START + EN BANDG AP + 1.21V FB 3pF 1.6k +14 -14% 5 ISL8560 RTCT RAM EAM OVFLT UVFLT ...

Page 6

VIN VIN 9V TO 60V VIN + 150µF 0.1µF LX PGND BOOT EN VIN VCC5 R1 20k SYNC C3 C1 1µF RTCT 470pF SGND FIGURE 2. TYPICAL SCHEMATIC FOR ISL8560 (5V V VIN VIN 18V TO 60V ...

Page 7

Typical Performance Curves 100 2.5V V 3.3V V OUT 1.8V V OUT 0.0 0.5 1.0 OUTPUT LOAD (A) FIGURE 4. EFFICIENCY vs LOAD (12V INPUT - 500kHz) 100 24V V OUT 90 ...

Page 8

Typical Performance Curves 12.3 12.2 12.1 12.0 36V V IN 11.9 11.8 11.7 0.0 0.5 1.0 OUTPUT LOAD (A) FIGURE 10. V REGULATION vs LOAD OUT (V = 12V - 500kHz) OUT 3.0 2.5 2.0 48V V IN 1.5 1.0 ...

Page 9

Typical Performance Curves 3.4 3.4 NO LOAD 3.3 2A LOAD 3.3 1A LOAD 3.3 3.2 3 INPUT VOLTAGE (V) FIGURE 16. OUTPUT VOLTAGE REGULATION vs V (PWM MODE) 12.3 12.2 12 OUT ...

Page 10

Typical Performance Curves LX = 10V/DIV V RIPPLE = 50mV/DIV OUT RTCT = 2V/DIV FIGURE 22. STEADY STATE OPERATION WITH FULL LOAD FIGURE 24. SOFT-START AT NO LOAD FIGURE 26. SOFT-START AT FULL LOAD 10 ISL8560 (Continued 1A/DIV ...

Page 11

Typical Performance Curves Applications Information Product Description The ISL8560 is a non-synchronous, integrated FET 2A step down regulator which operates from an unregulated input 60V. The output voltage is user-adjustable with a pair of external resistors. Frequency ...

Page 12

Fault Protection The ISL8560 monitors the output of the regulator for overcurrent and undervoltage events. The ISL8560 also provides protection from excessive junction temperatures. Overcurrent Protection The overcurrent function protects the switching converter from a shorted output by monitoring the ...

Page 13

The amplitudes of the different types of voltage excursions can be approximated by using the formulas in Equation 4: ΔV • ΔV ESR ESL ESR tran ESL 2 • out tran ΔV ------------------------------------------------- - = ...

Page 14

RMS current required by the circuit. Their voltage rating should be at least 1.25 times greater than the maximum input voltage, while a voltage ...

Page 15

Compensation Break Frequency Equations --------------------------------------------------------- - f = -------------------------- - ( ⋅ 2π ⋅ ⋅ --------------------------------- - C 2π -------------------------- - f ...

Page 16

... ISL8560 first. Minimize the length of the connections between the input capacitors Make the PGND and the IN output capacitors as short as possible. NOTE recommended that any applications with input voltage greater than 30VDC should be polymer coated to meet Intersil’s IPC-2221 creepage and clearance specification. 16 ISL8560 and C could IN OUT FN9244 ...

Page 17

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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