EL7512
®
Data Sheet
May 23, 2005
FN7290.1
High Frequency PWM Step-Up Regulator
Features
The EL7512 is a high frequency, high efficiency step-up
DC:DC regulator operated at fixed frequency PWM mode.
With an integrated 1A MOSFET, it can deliver up to 600mA
output current at up to 90% efficiency. The adjustable
switching frequency is up to 1.2MHz, making it ideal for DSL
applications.
• 90% efficiency
• Up to 600mA I
OUT
< 18V
• 5V < V
OUT
• V > 2V
IN
• Up to 1.2MHz adjustable frequency
• < 3µA shutdown current
When shut down, it draws <3µA of current. This feature,
along with the minimum starting voltage of 2V, makes it
suitable for portable equipment powered by one lithium ion
or 3 to 4 NiMH cells.
• Adjustable soft-start
• Low battery detection
The EL7512 is available in a 10-pin MSOP package, with
maximum height of 1.1mm. With proper external
components, the whole converter takes less than 0.25in
• Internal thermal protection
2
• 1.1mm max height 10-pin MSOP package
• Pb-Free available (RoHS compliant)
PCB space.
This device is specified for operation over the full -40°C to
+85°C temperature range.
Applications
• 3V to 5V, 12V, and 18V converters
• 5V to 12V and 16V converters
• TFT-LCD
Pinout
EL7512
(10-PIN MSOP)
TOP VIEW
• DSL
• Portable equipment
• Desktop equipment
L
D
1
1
V
OUT
V
(2V-
9V)
IN
(12V up
to
400mA)
10µH
R
1kΩ
C
5
4
C
1
47µF
10µF
Ordering Information
1
2
3
4
5
PGND
LX 10
C
4
TAPE &
0.1µF
SGND
RT
VDD
9
8
7
6
R
80.6k
2
PART NUMBER
EL7512CY
PACKAGE
10-Pin MSOP
10-Pin MSOP
10-Pin MSOP
REEL
PKG. DWG. #
MDP0043
MDP0043
MDP0043
MDP0043
R
3
FB
SS
R
C
10
4.7nF
1
100k
-
7”
13”
-
C
3
10kΩ
EN
EL7512CY-T7
EL7512CY-T13
20nF
LBI
LBO
EL7512CYZ
(See Note)
10-Pin MSOP
(Pb-free)
EL7512CYZ-T7
(See Note)
10-Pin MSOP
(Pb-free)
7”
MDP0043
MDP0043
EL7512CYZ-T13
(See Note)
10-Pin MSOP
(Pb-free)
13”
NOTE: Intersil Pb-free 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.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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