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参数资料
| 型号： | PT5548N |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA3 |
| 文件页数： | 1/8页 |
| 文件大小： | 195K |
| 代理商： | PT5548N |
For technical support and more information, see inside back cover or visit www.ti.com
SLTS175 FEBRUARY 2003
PT5540 Series
12-W 5-V Input Step-Up (Boost)
Integrated Switching Regulator
Standard Application
CIN
= Required 100F electrolytic
COUT = Required 100F electrolytic
(not to exceed 560F)
Ordering Information
PT5541
H = +12Volts
PT5542
H = +15 Volts
PT5544
H = + 8 Volts
PT5545
H = + 9 Volts
PT5546
H = +10 Volts
PT5548
H = +12.6 Volts
Pin
Function
1Vin
2GND
3Vo
Features
Input Voltage: 5V
84% Efficiency
Industrial Temperature Range:
–40°C to +85°C
Under-Voltage Lockout
Soft Start
Pin-Out Information
+V
O
COM
+V
IN
PT5540
1
2
3
C
IN
100F
+
C
OUT
100F
+
Description
The PT5540 Excalibur power modules
are a series of integrated switching regulators
(ISRs) that provide a boost-voltage function.
They are designed for use with +5V bus
systems that require an additional higher
voltage rail.
The modules are rated 12W and produce
a fixed output voltage over the full industrial
temperature range of -40°C to +85°C. The
series includes the common output voltages,
+12V and +15V. Applications include PCI
cards, audio circuits, and battery operated
instruments.
The PT5540 series is packaged in a 3-pin
thermally efficient copper case. The case is
solderable, has a small footprint, and can
accommodate both through-hole and surface
mount pin configurations.
The PT5540 series is offered as a next
generation replacement to the popular PT5040
series. The PT5540 has a lower operating
temperature range and improved start-up
characteristics.
PT Series Suffix (PT1234 x )
Case/Pin
Order
Package
Configuration
Suffix
Code
Vertical
N
(EFN)
Horizontal
A
(EFP)
SMD
C
(EFQ)
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
Small Footprint: 0.94in
× 0.35in
(Vertical package)
Solderable Copper Case
Surface Mountable
IPC Lead Free 2
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