EL7534
®
Data Sheet
August 16, 2005
FN7431.5
Monolithic 600mA Step-Down Regulator
Features
2
2
The EL7534 is a synchronous, integrated FET 600mA step-
down regulator with internal compensation. It operates with
an input voltage range from 2.5V to 5.5V, which
• Less than 0.15 in (0.97 cm ) footprint for the complete
600mA converter
• Components on one side of PCB
• Max height 1.1 mm MSOP10
accommodates supplies of 3.3V, 5V, or a Li-Ion battery
source. The output can be externally set from 0.8V to V
with a resistive divider.
IN
• 100ms Power-On-Reset output (POR)
• Internally-compensated voltage mode controller
• Up to 94% efficiency
The EL7534 features PWM mode control. The operating
frequency is typically 1.5MHz. Additional features include a
100ms Power-On-Reset output, <1µA shut-down current,
short-circuit protection, and over-temperature protection.
• <1µA shut-down current
• Overcurrent and over-temperature protection
• Pb-Free plus anneal available (RoHS compliant)
The EL7534 is available in the 10-pin MSOP package,
2
making the entire converter occupy less than 0.15 in of
PCB area with components on one side only. Both packages
are specified for operation over the full -40°C to +85°C
temperature range.
Applications
• PDA and pocket PC computers
Ordering Information
• Bar code readers
PART NUMBER
TAPE &
REEL
PKG.
• Cellular phones
(BRAND)
PACKAGE
DWG. #
• Portable test equipment
• Li-Ion battery powered devices
• Small form factor (SFP) modules
EL7534IY
10-Pin MSOP
-
MDP0043
MDP0043
MDP0043
MDP0043
MDP0043
MDP0043
(BPAAA)
EL7534IY-T7
(BPAAA)
10-Pin MSOP
10-Pin MSOP
7”
Pinout and Typical Application Diagram
EL7534IY-T13
(BPAAA)
13”
-
EL7534
TOP VIEW
EL7534IYZ
(BGAAA) (Note)
10-Pin MSOP
(Pb-free)
EL7534IYZ-T7
(BGAAA) (Note)
10-Pin MSOP
(Pb-free)
7”
R *
1
100kΩ
EL7534IYZ-T13
(BGAAA) (Note)
10-Pin MSOP
(Pb-free)
13”
1
2
3
4
5
SGND
PGND
LX
FB 10
R *
2
124kΩ
VO
POR
EN
9
8
7
6
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.
C
10µF
C
2
10µF
1
L
1
POR
EN
1.8µH
V
(1.8V@600mA)
O
VIN
R
3
V
(2.5V-6V)
IN
100Ω
VDD
RSI
RSI
R
C
3
6
0.1µF
100kΩ
R
R
100kΩ
100kΩ
4
5
* V = 0.8V * (1 + R / R )
O
2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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