EL7530
®
Data Sheet
August 10, 2005
FN7434.3
Monolithic 600mA Step-Down Regulator
with Low Quiescent Current
Features
2
• Less than 0.18in footprint for the complete 600mA
converter
The EL7530 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
• Components on one side of PCB
• Max height 1.1mm 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.
• Power-Good (PG) output
IN
• Internally-compensated voltage mode controller
• Up to 95% efficiency
The EL7530 features automatic PFM/PWM mode control, or
PWM mode only. The PWM frequency is typically 1.4MHz
and can be synchronized up to 12MHz. The typical no load
quiescent current is only 120µA. Additional features include
a Power-Good output, <1µA shut-down current, short-circuit
protection, and over-temperature protection.
• <1µA shut-down current
• 120µA quiescent current
• Overcurrent and over-temperature protection
• External synchronizable up to 12MHz
• Pb-Free plus anneal available (RoHS compliant)
The EL7530 is available in the 10-pin MSOP package,
2
making the the entire converter occupy less than 0.18n of
PCB area with components on one side only. The 10-pin
MSOP package is specified for operation over the full -40°C
to +85°C temperature range.
Applications
• PDA and pocket PC computers
• Bar code readers
Ordering Information
• Cellular phones
PART NUMBER
TAPE &
REEL
PKG.
(BRAND)
PACKAGE
DWG. #
• Portable test equipment
• Li-Ion battery powered devices
• Small form factor (SFP) modules
EL7530IY
(BYAAA)
10-Pin MSOP
-
MDP0043
MDP0043
MDP0043
MDP0043
MDP0043
MDP0043
EL7530IY-T7
(BYAAA)
10-Pin MSOP
10-Pin MSOP
7”
Pinout and Typical Application Diagram
EL7530IY-T13
(BYAAA)
13”
-
EL7530
TOP VIEW
EL7530IYZ
(BAADA) (Note)
10-Pin MSOP
(Pb-free)
EL7530IYZ-T7
(BAADA) (Note)
10-Pin MSOP
(Pb-free)
7”
R *
1
100kΩ
SGND
PGND
LX
FB
VO
PG
EN
1
2
3
4
5
10
9
C
EL7530IYZ-T13
(BAADA) (Note)
10-Pin MSOP
(Pb-free)
13”
R *
2
124kΩ
4
C
10µF
C
2
10µF
1
470pF
PG
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.
L
1
8
1.8µH
V
(1.8V@600mA)
O
EN
VIN
7
R
100Ω
3
V
(2.5V-6V)
S
SYNC
VDD
SYNC 6
R
C
3
0.1µF
6
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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