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PDF EL7536 Data sheet ( Hoja de datos )
| Número de pieza | EL7536 | |
| Descripción | Monolithic 1A Step-Down Regulator | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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NOTPROESCSOIBMLMEESNUDIBSESL®DT97FIT5OU3RT6ENDEPaWRtaODDSEUhSeCIGeTtNS
Monolithic 1A Step-Down Regulator
The EL7536 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 VIN with a resistive
divider.
The EL7536 features PWM mode control. The operating
frequency is typically 1.4MHz. Additional features include a
100ms Power-On-Reset output, <1µA shut-down current,
short-circuit protection, and over-temperature protection.
The EL7536 is available in the 10 Ld MSOP package,
making the entire converter occupy less than 0.15in2 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.
(BRAND)
MARKING REEL PACKAGE DWG. #
EL7536IY
BDAAA
- 10 Ld MSOP MDP0043
EL7536IY-T7 BDAAA
7” 10 Ld MSOP MDP0043
EL7536IY-T13 BDAAA
13” 10 Ld MSOP MDP0043
EL7536IYZ
(Note)
BFAAA
- 10 Ld MSOP MDP0043
(Pb-free)
EL7536IYZ-T7 BFAAA
(Note)
7” 10 Ld MSOP MDP0043
(Pb-free)
EL7536IYZ-T13 BFAAA
(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
EL7536 (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
July 13, 2006
EL7536
FN7396.8
Features
• Less than 0.15in2 (0.97cm2) footprint for the complete 1A
converter
• Components on one side of PCB
• Max height 1.1mm 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
EL7536
TOP VIEW
VS (2.5V to 5.5V)
L1
R3 100Ω
VIN
VDD
LX 1.8µH
C1
10µF
C2 C3
10µF
0.1µF
EL7536
VO
R5 100kΩ
R4 100kΩ
R6
100kΩ
POR
EN
RSI
PGND
SGND
R1*
124kΩ
FB
R2*
100kΩ
C4
470pF
VO (1.8V @ 1A)
* 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. 2003-2006. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
1 page  
EL7536
Performance Curves and Waveforms (Continued)
All waveforms are taken at VIN = 3.3V, VO = 1.8V, IO = 1A with component values shown on page 1 at room ambient temperature, unless otherwise
noted.
VIN
(1V/d)
IIN
(0.5A/d)
VO
(1V/d)
VIN
(2V/d)
VO
(2V/d)
POR
(2V/d)
0.5ms/d
FIGURE 7. START-UP 1
50ms/d
FIGURE 8. START-UP 2
VIN
(2V/d)
VO
(2V/d)
50ms/d
FIGURE 9. POR FUNCTION
RSI
(2V/d)
POR
(2V/d)
0.75A
IO 0.25A
ΔVO 20mV/d
0.2ms/d
FIGURE 10. TRANSIENT RESPONSE
ΔVIN
iL
VLX
ΔVO
1µs/d
FIGURE 11. STEADY-STATE
100mV/d
0.5A/d
2V/d
10mV/d
5
FN7396.8
July 13, 2006
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet EL7536.PDF ] | |
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