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參數資料
| 型號： | ISL97702IRZ-T7 |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | Boost with Dual Reference Outputs |
| 中文描述： | 1.2 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, DSO10 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, MO-229, DFN-10 |
| 文件頁數： | 1/13頁 |
| 文件大?。?/td> | 489K |
| 代理商： | ISL97702IRZ-T7 |
1
FN7462.0
ISL97702
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°C to 85°C temperature
range.
Pinout
ISL97702
(10 LD 3X3 DFN)
TOP VIEW
Features
Up to 87% efficiency
2.3V to 5.5V input
Up to 28V output
50mA at 18V
Integrated boost Schottky diode
Input voltage disconnect switch
Dual output voltage selectable
Synchronization input
Chip enable
10 Ld 3x3 DFN package
Pb-free plus anneal available (RoHS compliant)
Applications
OLED display power
LED display power
Adjustable power supplies
Typical Application Diagram
Ordering Information
PART
NUMBER
PART
MARKING
TAPE &
REEL
PACKAGE
PKG.
DWG. #
ISL97702IRZ
(Note)
97702IRZ
-
10 Ld 3x3 DFN
(Pb-Free)
MDP0047
ISL97702IRZ-T7
(Note)
97702IRZ
7”
10 Ld 3x3 DFN
(Pb-Free)
MDP0047
ISL97702IRZ-T13
(Note)
97702IRZ
13”
10 Ld 3x3 DFN
(Pb-Free)
MDP0047
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.
1
2
3
4
10
9
8
7
5
6
THERMAL
PAD
GND
VDDOUT
VDD
NSYNC
LX
VOUT
NEN
SEL
FB1
FB0
NEN
SEL
V
OUT
1
X
High Z
0
0
V
OUT0
0
1
V
OUT1
O
&
C
VDDOUT
NEN
NSYNC
GND
SEL
C
0
5μ
C
1
3.3μ
R
1
390K
R
2
39K
R
3
26.1K
L
1
6.8μ
LX
VOUT
FB0
FB1
BOOST WITH
DUAL REFERENCE
V
DD
+2V - 30V
V(VOUT)
0
= (390K + 39K) / 39K * 1.15V = 12.65V
V(VOUT)
1
= (390K + 26.1K) / 26.1K * 1.15V = 18.33V
VDD
2.3V-5.5V
Data Sheet
October 13, 2005
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.
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