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EL7535IY-T7 Datasheet(PDF) 1 Page - Intersil Corporation

Part # EL7535IY-T7
Description  Monolithic 350mA Step-Down Regulator
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

EL7535IY-T7 Datasheet(HTML) 1 Page - Intersil Corporation

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1
®
FN7003.5
EL7535
Monolithic 350mA Step-Down Regulator
The EL7535 is a synchronous, integrated FET 350mA step-
down regulator in a MSOP10 package. The regulator is
internally compensated, which makes it possible to use just
five tiny external components to form a complete DC/DC
converter. The regulator operates with an input voltage
range from 2.5V to 6V, which accommodates supplies of
3.3V, 5V, or a Li-Ion battery source. The output can be
externally set from 0.8V to VIN with a resistive divider.
The EL7535 features PWM mode control. The operating
frequency is typically 1.4MHz. Additional features include
<1µA shut-down current, short-circuit protection, and over-
temperature protection.
The EL7535 is available in the 10 Ld MSOP package and is
specified for operation over the full -40°C to +85°C
temperature range.
Pinout
EL7535 (10 LD MSOP)
TOP VIEW
Features
• Extremely small 350mA DC/DC converter
• Max height 1.1mm MSOP10 package
• Possibly uses only five tiny external components with fixed
output
• Power-On-Reset output (POR)
• Internally-compensated voltage mode controller
• Up to 94% efficiency
• <1µA shut-down current
• Overcurrent and over-temperature protection
• Pb-free plus anneal available (RoHS compliant)
Applications
• PDA and pocket PC computers
• Bar code readers
• Cellular phones
• Portable test equipment
• Li-Ion battery powered devices
• Small form factor (SFP) modules
Typical Application Diagram
EL7535
(10 LD MSOP)
TOP VIEW
Ordering Information
PART NUMBER
(BRAND)
PART
MARKING
TAPE &
REEL
PACKAGE
PKG.
DWG. #
EL7535IY
a
-
10 Ld MSOP
MDP0043
EL7535IY-T7
a
7”
10 Ld MSOP
MDP0043
EL7535IY-T13
a
13”
10 Ld MSOP
MDP0043
EL7535IYZ
(Note)
BAACA
-
10 Ld MSOP
(Pb-free)
MDP0043
EL7535IYZ-T7
(Note)
BAACA
7”
10 Ld MSOP
(Pb-free)
MDP0043
EL7535IYZ-T13
(Note)
BAACA
13”
10 Ld MSOP
(Pb-free)
MDP0043
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.
SGND
FB
VDD
RSI
VIN
EN
LX
POR
PGND
VO
1
2
3
4
10
9
8
7
5
6
* VO = 0.8V * (1 + R1 / R2)
1.8µH
C1
C2
10µF
L1
0.1µF
C3
(2.5V to 5.5V)
VS
10µF
(1.8V @ 350mA)
R1*
R2*
124k
100k
VIN
VDD
LX
FB
RSI
EN
POR
PGND
SGND
R4 100kΩ
R5 100kΩ
100k
R6
EL7535
VO
VO
R3 100Ω
470pF
C4
Data Sheet
July 13, 2006
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. 2004, 2005, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.


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