EL7562 查看數據表（PDF） - Renesas Electronics
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EL7562 Datasheet PDF : 9 Pages
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NOT RECOMMENDED FOR NEW DESIGNS
SEE EL7532
EL7562
Monolithic 2Amp DC-DC Step-Down Regulator
DATASHEET
FN7295
Rev 1.00
May 1, 2006
The EL7562 is an integrated, synchronous step-down
regulator with output voltage adjustable from 1.0V to 3.8V. It
is capable of delivering 2A continuous current at up to 95%
efficiency. The EL7562 operates at a constant frequency
pulse width modulation (PWM) mode, making external
synchronization possible. Patented on-chip resistorless
current sensing enables current mode control, which
provides cycle-by-cycle current limiting, over-current
protection, and excellent step load response. The EL7562 is
available in a fused-lead 16 Ld QSOP package. With proper
external components, the whole converter fits into a less
than 0.5 in2 area. The minimal external components and
small size make this EL7562 ideal for desktop and portable
applications.
The EL7562 is specified for operation over the 0°C to +70°C
temperature range.
Pinout
EL7562
(16 LD QSOP)
TOP VIEW
Features
• Integrated synchronous MOSFETs and current mode
controller
• 2A continuous output current
• Up to 95% efficiency
• 3.3V or 5V nominal input voltage
• Adjustable output from 1V to 3.8V
• Cycle-by-cycle current limit
• Precision reference
• ±0.5% load and line regulation
• Adjustable switching frequency to 1MHz
• Oscillator synchronization possible
• Internal soft-start
• Over-temperature protection
• Under-voltage lockout
• 16 Ld QSOP package
• Pb-free plus anneal available (RoHS compliant)
Applications
C3
C4
0.1µF 270pF
R3
39
C1
C2
100µF 0.1µF
VIN
(4.5V- 5.5V)
1 SGND PGND 16
2 COSC VREF 15
3 VDD
FB 14
4 PGND VDRV 13
5 PGND
LX 12
6 VIN
LX 11
7 VIN
VHI 10
8 EN
PGND 9
C5
0.1µF R2
R1 2.37k
1k
C6
0.1µF
VO
C7
(3.3V,
2A)
100µF
• DSP, CPU core and IO supplies
• Logic/Bus supplies
• Portable equipment
• DC-DC converter modules
• GTL + Bus power supply
Ordering Information
PART TAPE &
PKG.
PART NUMBER MARKING REEL PACKAGE DWG. #
EL7562CU
7562CU
- 16 Ld QSOP MDP0040
EL7562CU-T7 7562CU
7” 16 Ld QSOP MDP0040
EL7562CU-T13 7562CU
13” 16 Ld QSOP MDP0040
Please refer to page 4 for 3.3V input Application Diagram
EL7562CUZ
(Note)
7562CUZ
- 16 Ld QSOP MDP0040
(Pb-free)
Manufactured under U.S. Patent No. 57,323,974
EL7562CUZ-T7 7562CUZ
(Note)
7” 16 Ld QSOP MDP0040
(Pb-free)
EL7562CUZ-T13 7562CUZ
(Note)
13” 16 Ld QSOP MDP0040
(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.
FN7295 Rev 1.00
May 1, 2006
Page 1 of 9
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