ISL85033IRTZ-T7A Intersil, ISL85033IRTZ-T7A Datasheet - Page 24

• Manufacturer Part Number: ISL85033IRTZ-T7A
• Description: IC REG BUCK ADJ DUAL 28TQFN
• Manufacturer: Intersil
• Type: Step-Down (Buck)r

Specifications of ISL85033IRTZ-T7A

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 V ~ 28 V
• Current - Output: 3A
• Frequency - Switching: 300kHz ~ 2MHz
• Voltage - Input: 4.5 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-WFQFN Exposed Pad
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL85033IRTZ-T7ATR

Products
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Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones,
handheld products, and notebooks. Intersil's product families address power management and analog signal
processing functions. Go to
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Intersil products are sold by description only. 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 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
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Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to
web to make sure you have the latest Rev.
10/15/10
9/14/10
6/21/10
6/18/10
DATE
Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted
For information regarding Intersil Corporation and its products, see
REVISION
FN6676.2
FN6676.1
FN6676.0
in the quality certifications found at
24
www.intersil.com/products
For additional products, see
Added the following sentence to the “SYNCIN” description in the “Pin Descriptions” table on
page 3:
“Set the internal switching frequency 20% lower than the external SYNC frequency applied to
the SYNCIN pin.”
Added the following sentence to “Synchronization Control” on page 18:
“The switching frequency for each output is half of the SYNCIN frequency.”
Revised tape and reel note in “Ordering Information” on page 6 from:
“Add “-T” suffix for Tape and Reel. Please refer to TB347 for details on reel specifications”
to:
“Add “-T*” suffix for Tape and Reel. Please refer to
This is in order to delineate all tape and reel options.
Corrected Eq. 1 on page 16 from:
R
to:
R
Revised preceding paragraph from:
“The output voltage programming resistor, R
resistor, R
relationship between V
to 10kΩ range.”
to:
“The output voltage programming resistor, R
resistor, R
relationship between V
range.”
Changed MIN/MAX for “Soft-Start Charging Current” on page 9 from 1.5/2.5µA to 1.4/2.6µA
Initial Release.
3
2
ISL85033
=
=
----------------------------------
V
(
V
OUT
R
http://rel.intersil.com/reports/search.php
OUT
2
x0.8V
2
3
, and the desired output voltage, V
, and the desired output voltage, V
–
–
0.8V
0.8 ) R
•
3
ISL85033
⁄
OUT
OUT
0.8
for a complete list of Intersil product families.
and resistor values. R
and resistor values. R
www.intersil.com/product_tree
www.intersil.com/design/quality
www.intersil.com/askourstaff
CHANGE
3
2
, depends on the value chosen for the feedback
, depends on the value chosen for the feedback
OUT
OUT
2
3
, of the regulator. Equation 1 describes the
, of the regulator. Equation 1 describes the
is often chosen to be in the 1kΩ
is often chosen to be in the 1kΩ to 10kΩ
TB347
for details on reel specifications”
www.intersil.com
December 8, 2010
FN6676.2