參數(shù)資料
型號: EL7531IY-T7
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: Monolithic 1A Step-Down Regulator with Low Quiescent Current
中文描述: 1.5 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO10
封裝: 1.10 MM HEIGHT, MSOP-10
文件頁數(shù): 1/10頁
文件大?。?/td> 492K
代理商: EL7531IY-T7
1
FN7428.6
EL7531
Monolithic 1A Step-Down Regulator with
Low Quiescent Current
The EL7531 is a synchronous, integrated FET 1A 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 EL7531 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.
The EL7531 is available in the 10-pin MSOP package,
making the entire converter occupy less than 0.15 in
2
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.
Features
Less than 0.15 in
2
(0.97 cm
2
) footprint for the complete 1A
converter
Components on one side of PCB
Max height 1.1mm MSOP10
Power-Good (PG) output
Internally-compensated voltage mode controller
Up to 94% 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)
Applications
PDA and pocket PC computers
Bar code readers
Cellular phones
Portable test equipment
Li-Ion battery powered devices
Small form factor (SFP) modules
Pinout and Typical Application Diagram
EL7531
TOP VIEW
Ordering Information
PART NUMBER
(BRAND)
PACKAGE
TAPE &
REEL
PKG.
DWG. #
EL7531IY
(BEAAA)
10-Pin MSOP
-
MDP0043
EL7531IY-T7
(BEAAA)
10-Pin MSOP
7”
MDP0043
EL7531IY-T13
(BEAAA)
10-Pin MSOP
13”
MDP0043
EL7531IYZ
(BHAAA) (Note)
10-Pin MSOP
(Pb-free)
-
MDP0043
EL7531IYZ-T7
(BHAAA) (Note)
10-Pin MSOP
(Pb-free)
7”
MDP0043
EL7531IYZ-T13
(BHAAA) (Note)
10-Pin MSOP
(Pb-free)
13”
MDP0043
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.
1
2
3
4
10
9
8
7
5
6
SGND
PGND
LX
VIN
VDD
FB
VO
PG
EN
SYNC
R
1
*
100k
R
2
*
124k
C
4
470pF
R
6
100k
R
4
R
5
100k
100k
PG
EN
SYNC
R
3
100
C
3
0.1μF
C
2
10μF
L
1
1.8μH
C
1
10μF
V
S
(2.5V-6V)
V
O
(1.8V@1A)
* V
O
= 0.8V * (1 + R
2
/ R
1
)
Data Sheet
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004, 2005. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
August 5, 2005
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