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ISL97702IRZ Datasheet

  • ISL97702IRZ

  • Boost with Dual Reference Outputs

  • 489.11KB

  • 13页

  • INTERSIL   INTERSIL

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ISL97702
Data Sheet
October 13, 2005
FN7462.0
Boost with Dual Reference Outputs
The ISL97702 represents a high efficiency, boost converter
with integrated boost FET, boost diode and input disconnect
FET. A dual feedback circuit allows simple switching
between two pre-defined output vbltages using a single logic
input..
With an input voltage of 2.3V to 5.5V the ISL97702 has an
output capability of up to 50mA at 18V using integrated
500mA switches. Efficiencies are up to 87%. The
integrated protection FET is used to disconnect the boost
inductor from the input supply whenever an output fault
condition is detected, or when the device is disabled. This
gives 0 output current in the disabled mode, compared to
standard boost converters where current can still flow when
the device is disabled.
The ISL97702 comes in the 10 Ld 3x3 DFN package and is
specified for operation over the -40掳C to 85掳C temperature
range.
Features
鈥?Up to 87% efficiency
鈥?2.3V to 5.5V input
鈥?Up to 28V output
鈥?50mA at 18V
鈥?Integrated boost Schottky diode
鈥?Input voltage disconnect switch
鈥?Dual output voltage selectable
鈥?Synchronization input
鈥?Chip enable
鈥?10 Ld 3x3 DFN package
鈥?Pb-free plus anneal available (RoHS compliant)
Applications
鈥?OLED display power
鈥?LED display power
Ordering Information
PART
NUMBER
ISL97702IRZ
(Note)
ISL97702IRZ-T7
(Note)
PART
TAPE &
MARKING REEL
97702IRZ
97702IRZ
-
7鈥?/div>
13鈥?/div>
PACKAGE
PKG.
DWG. #
鈥?Adjustable power supplies
10 Ld 3x3 DFN MDP0047
(Pb-Free)
10 Ld 3x3 DFN MDP0047
(Pb-Free)
10 Ld 3x3 DFN MDP0047
(Pb-Free)
Typical Application Diagram
L
1
6.8碌
VDDOUT
2.3V-5.5V
C
0
5碌
NEN
NSYNC
GND
FB0
R
3
26.1K
FB1
R
2
39K
LX
VDD
OSCILLATOR
&
CONTROL
VOUT
V
DD
+2V - 30V
R
1
3.3碌 390K
C
1
ISL97702IRZ-T13 97702IRZ
(Note)
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are 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.
Pinout
ISL97702
(10 LD 3X3 DFN)
TOP VIEW
GND 1
VDDOUT 2
VDD 3
NSYNC 4
FB0 5
THERMAL
PAD
10 LX
9 VOUT
8 NEN
7 SEL
6 FB1
SEL
BOOST WITH
DUAL REFERENCE
V(VOUT)
0
= (390K + 39K) / 39K * 1.15V = 12.65V
V(VOUT)
1
= (390K + 26.1K) / 26.1K * 1.15V = 18.33V
NEN
1
0
0
SEL
X
0
1
V
OUT
High Z
V
OUT0
V
OUT1
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. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

ISL97702IRZ 产品属性

  • 100

  • 集成电路 (IC)

  • PMIC - 稳压器 - DC DC 开关稳压器

  • -

  • 升压（升压）

  • 可调式

  • 2

  • 可调至 28V

  • 2.3 V ~ 5.5 V

  • -

  • 1MHz

  • 130mA

  • 无

  • -40°C ~ 85°C

  • 表面贴装

  • 10-VFDFN 裸露焊盘

  • 管件

  • 10-DFN（3x3）

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