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Intersil Electronic Components Datasheet

EL7530 Datasheet

Monolithic 600mA Step-Down Regulator

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®
Data Sheet
July 12, 2006
EL7530
FN7434.6
Monolithic 600mA Step-Down Regulator
with Low Quiescent Current
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
be externally set from 0.8V to VIN with a resistive divider.
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.
The EL7530 is available in the 10 Ld MSOP package,
making the entire converter occupy less than 0.18n2 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.
Ordering Information
PART TAPE &
PART NUMBER MARKING REEL PACKAGE
www.DataSheet4U.comEL7530IY
BYAAA
- 10 Ld MSOP
PKG.
DWG. #
MDP0043
EL7530IY-T7 BYAAA
7” 10 Ld MSOP MDP0043
EL7530IY-T13 BYAAA
13” 10 Ld MSOP MDP0043
EL7530IYZ
(Note)
BAADA
- 10 Ld MSOP MDP0043
(Pb-free)
EL7530IYZ-T7 BAADA
(Note)
7” 10 Ld MSOP MDP0043
(Pb-free)
EL7530IYZ-T13 BAADA
(Note)
13” 10 Ld MSOP 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.
Pinout
EL7530 (10 LD MSOP)
TOP VIEW
1 SGND
FB 10
2 PGND
VO 9
3 LX
PG 8
4 VIN
EN 7
5 VDD SYNC 6
Features
• Less than 0.18in2 footprint for the complete 600mA
converter
• Components on one side of PCB
• Max height 1.1mm MSOP10
• Power-Good (PG) output
• 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)
Applications
• PDA and pocket PC computers
• Bar code readers
• Cellular phones
• Portable test equipment
• Li-Ion battery powered devices
• Small form factor (SFP) modules
Typical Application Diagram
EL7530
TOP VIEW
VS (2.5V to 5.5V)
L1
R3 100
VIN
VDD
LX 1.8µH
C1
10µF
C2 C3
10µF
0.1µF
EL7530
VO
R5 100k
R4 100k
R6
100k
PG
EN
SYNC
PGND
SGND
R1*
124k
FB
R2*
100k
C4
470pF
VO (1.8V @ 600mA)
* VO = 0.8V * (1 + R1 / R2)
1
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. 2004-2006. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

EL7530 Datasheet

Monolithic 600mA Step-Down Regulator

No Preview Available !

EL7530
Absolute Maximum Ratings (TA = 25°C)
VIN, VDD, PG to SGND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
LX to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VIN + +0.3V)
SYNC, EN, VO, FB to SGND . . . . . . . . . . . . . -0.3V to (VIN + +0.3V)
PGND to SGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W)
MSOP Package (Note 1) . . . . . . . . . . . . . . . . . . . . .
115
Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are
at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
NOTE:
1. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
Electrical Specifications VDD = VIN = VEN = 3.3V, C1 = C2 = 10µF, L = 1.8µH, VO = 1.8V (as shown in Typical Application Diagram),
unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP MAX UNIT
DC CHARACTERISTICS
VFB
IFB
VIN, VDD
VIN,OFF
VIN,ON
IS
IDD
Feedback Input Voltage
Feedback Input Current
Input Voltage
Minimum Voltage for Shutdown
Maximum Voltage for Startup
Input Supply Quiescent Current
Active - PFM Mode
Active - PWM Mode
Supply Current
RDS(ON)-PMOS PMOS FET Resistance
RDS(ON)-NMOS NMOS FET Resistance
ILMAX
Current Limit
TOT,OFF
Over-temperature Threshold
TOT,ON
Over-temperature Hysteresis
IEN, ISYNC
EN, SYNC Current
VEN1, VSYNC1 EN, SYNC Rising Threshold
VEN2, VSYNC2 EN, SYNC Falling Threshold
VPG
Minimum VFB for PG, WRT Targeted
VFB Value
VOLPG
PG Voltage Drop
AC CHARACTERISTICS
PWM Mode
VIN falling
VIN rising
VSYNC = 0V
VSYNC = 3.3V
PWM, VIN = VDD = 5V
EN = 0, VIN = VDD = 5V
VDD = 5V, wafer test only
VDD = 5V, wafer test only
T rising
T falling
VEN, VRSI = 0V and 3.3V
VDD = 3.3V
VDD = 3.3V
VFB rising
VFB falling
ISINK = 3.3mA
790 800 810 mV
100 nA
2.5 5.5 V
2 2.2 V
2.2 2.4 V
120 145
µA
6.5 7.5 mA
400 500
µA
0.1 1 µA
70 100 m
45 75 m
1.2 A
145 °C
130 °C
-1 1 µA
2.4 V
0.8 V
95 %
86 %
35 70 mV
FPWM
tSYNC
tSS
PWM Switching Frequency
Minimum SYNC Pulse Width
Soft-start Time
Guaranteed by design
1.25 1.4
25
650
1.6 MHz
ns
µs
2 FN7434.6
July 12, 2006


Part Number EL7530
Description Monolithic 600mA Step-Down Regulator
Maker Intersil Corporation
Total Page 11 Pages
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