EL7530
®
Data Sheet
July 12, 2006
FN7434.6
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 accommodates
supplies of 3.3V, 5V, or a Li-Ion battery source. The output can
• Components on one side of PCB
• Max height 1.1mm MSOP10
be externally set from 0.8V to V with a resistive divider.
IN
• Power-Good (PG) output
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.
• Internally-compensated voltage mode controller
• Up to 95% efficiency
• <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 Ld MSOP package,
2
making the entire converter occupy less than 0.18n of PCB
area with components on one side only. The 10 Ld MSOP
package is specified for operation over the full -40°C to
+85°C temperature range.
Applications
Ordering Information
• PDA and pocket PC computers
• Bar code readers
PART
TAPE &
PKG.
DWG. #
PART NUMBER MARKING REEL
PACKAGE
• Cellular phones
EL7530IY
BYAAA
BYAAA
BYAAA
BAADA
-
7”
13”
-
10 Ld MSOP MDP0043
10 Ld MSOP MDP0043
10 Ld MSOP MDP0043
• Portable test equipment
• Li-Ion battery powered devices
• Small form factor (SFP) modules
EL7530IY-T7
EL7530IY-T13
EL7530IYZ
(Note)
10 Ld MSOP MDP0043
(Pb-free)
EL7530IYZ-T7
(Note)
BAADA
7”
10 Ld MSOP MDP0043
(Pb-free)
Typical Application Diagram
EL7530
EL7530IYZ-T13 BAADA
(Note)
13”
10 Ld MSOP MDP0043
(Pb-free)
TOP VIEW
V
V
(2.5V to 5.5V)
L
1
O
S
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.
VIN
LX
1.8µH
R
100Ω
3
C
10µF
1
VDD
C
10µF
C
3
2
0.1µF
EL7530
R
R
100kΩ
5
4
R *
1
124kΩ
PG
EN
C
4
Pinout
FB
VO
470pF
EL7530 (10 LD MSOP)
100kΩ
SYNC
R *
2
100kΩ
TOP VIEW
R
6
100kΩ
PGND
SGND
SGND
PGND
LX
FB
VO
1
2
3
4
5
10
9
(1.8V @ 600mA)
PG
8
* V = 0.8V * (1 + R / R )
O
1
2
VIN
EN
7
6
VDD
SYNC
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright © Intersil Americas Inc. 2004-2006. All Rights Reserved.
1
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