EL7534 Datasheet, PDF (1/8 Pages) Intersil Corporation – Monolithic 600mA Step-Down Regulator

®
Data Sheet
August 16, 2005
EL7534
FN7431.5
Monolithic 600mA Step-Down Regulator
Features
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
accommodates supplies of 3.3V, 5V, or a Li-Ion battery
source. The output can be externally set from 0.8V to V_IN
with a resistive divider.
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.
• Less than 0.15 in² (0.97 cm²) footprint for the complete
600mA converter
• Components on one side of PCB
• Max height 1.1 mm MSOP10
• 100ms Power-On-Reset output (POR)
• Internally-compensated voltage mode controller
• Up to 94% efficiency
• <1µA shut-down current
The EL7534 is available in the 10-pin MSOP package,
making the entire converter occupy less than 0.15 in² 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.
Ordering Information
• Overcurrent and over-temperature protection
• Pb-Free plus anneal available (RoHS compliant)
Applications
• PDA and pocket PC computers
• Bar code readers
PART NUMBER
(BRAND)
EL7534IY
(BPAAA)
PACKAGE
10-Pin MSOP
TAPE &
REEL
-
PKG.
DWG. #
MDP0043
• Cellular phones
• Portable test equipment
• Li-Ion battery powered devices
EL7534IY-T7
(BPAAA)
EL7534IY-T13
(BPAAA)
EL7534IYZ
(BGAAA) (Note)
10-Pin MSOP
7”
MDP0043
10-Pin MSOP
13”
MDP0043
10-Pin MSOP
-
MDP0043
(Pb-free)
• Small form factor (SFP) modules
Pinout and Typical Application Diagram
EL7534
TOP VIEW
EL7534IYZ-T7
(BGAAA) (Note)
10-Pin MSOP
7”
MDP0043
(Pb-free)
EL7534IYZ-T13
(BGAAA) (Note)
10-Pin MSOP
13”
MDP0043
(Pb-free)
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.
C₁
10µF
V_O (1.8V@600mA)
V_IN (2.5V-6V)
C₂
L_{1 10µF}
1.8µH
R₃
100Ω
C₃
0.1µF
1 SGND
2 PGND
3 LX
4 VIN
5 VDD
FB 10
VO 9
POR 8
EN 7
RSI 6
R₄ 100kΩ
R₁*
100kΩ
R₂*
124kΩ
POR
EN
RSI
R₆
100kΩ
R₅ 100kΩ
* V_O = 0.8V * (1 + R₂ / R₁)
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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