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PDF EL7534 Data sheet ( Hoja de datos )
| Número de pieza | EL7534 | |
| Descripción | Monolithic 600mA Step-Down Regulator | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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®
Data Sheet
July 12, 2006
EL7534
FN7431.8
Monolithic 600mA Step-Down Regulator
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 VIN
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.
The EL7534 is available in the 10 Ld 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
PART
NUMBER
PART TAPE &
PKG.
MARKING REEL PACKAGE DWG. #
EL7534IY
www.DataSheet4U.comEL7534IY-T7
BPAAA
BPAAA
- 10 Ld MSOP MDP0043
7” 10 Ld MSOP MDP0043
EL7534IY-T13 BPAAA
13” 10 Ld MSOP MDP0043
EL7534IYZ
(Note)
BGAAA
- 10 Ld MSOP MDP0043
(Pb-free)
EL7534IYZ-T7 BGAAA
(Note)
7” 10 Ld MSOP MDP0043
(Pb-free)
EL7534IYZ-T13 BGAAA
(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
EL7534 (10 LD MSOP)
TOP VIEW
1 SGND
2 PGND
3 LX
4 VIN
5 VDD
FB 10
VO 9
POR 8
EN 7
RSI 6
Features
• 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
• Overcurrent and over-temperature protection
• 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
EL7534
TOP VIEW
VS (2.5V to 5.5V)
L1
R3 100Ω
VIN
VDD
LX 1.8µH
C1
10µF
C2 C3
10µF
0.1µF
EL7534
VO
R5 100kΩ
R4 100kΩ
R6
100kΩ
POR
EN
RSI
PGND
SGND
R1*
124kΩ
FB
R2*
100kΩ
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, 2005, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 page  
EL7534
Performance Curves and Waveforms (Continued)
All waveforms are taken at VIN = 3.3V, VO = 1.8V, IO = 600mA with component values shown on page 1 at room ambient temperature, unless
otherwise noted.
VIN
(1V/DIV)
IIN
(0.5A/DIV)
VO
(1V/DIV)
VIN
(2V/DIV)
VO
(2V/DIV)
POR
(2V/DIV)
0.5ms/DIV
FIGURE 7. START-UP 1
50ms/DIV
FIGURE 8. START-UP 2
VIN
(2V/DIV)
VO
(2V/DIV)
50ms/DIV
FIGURE 9. POR FUNCTION
RSI
(2V/DIV)
POR
(2V/DIV)
IO
(200mA/DIV)
∆VO
(50mV/DIV)
50µs/DIV
FIGURE 10. TRANSIENT RESPONSE (100mA to 500mA)
1µs/DIV
FIGURE 11. STEADY-STATE
∆VIN
(100mV/DIV)
iL
(0.5A/DIV)
VLX
(2V/DIV)
∆VO
(10mV/DIV)
5 FN7431.8
July 12, 2006
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet EL7534.PDF ] | |
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