參數(shù)資料
型號(hào): PT8105A
廠商: Texas Instruments, Inc.
英文描述: FILTER CABLE/CLAMP 35 OHM 7MM
中文描述: 40 -阿3.3/5-V輸入可編程集成開關(guān)穩(wěn)壓器
文件頁數(shù): 1/14頁
文件大小: 231K
代理商: PT8105A
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
1
Standard Application
(See p.3 for PT8104 application schematic)
PT8100 Series
Description
The PT8100 Excalibur power
modules are a family of high-output,
high-efficiency, fully integrated
switching regulators (ISRs), housed
in a solderable 31-pin space-saving
copper package. Modules are avail-
able for operation from either a 3.3V
or 5V nominal input bus voltage.
Each provides up to 40A of output
current at output voltages as low
as 0.8V. The output voltage is pro-
grammable via a 5-bit input code.
The PT8100 series incorporates
a state-of-the-art, 2-phase, multiple
power path topology. This extends
the output current range while pro-
viding superior transient response
Features
40ADC Output Current
+3.3V or +5V Input
Low Output Voltages:
0.8V—2.7V
High Efficiency
Programmable Output:
(VRM Compatible 5-bit Codes)
Multiphase Topology
C
1
C
2
= Required 1500μF electrolytic input capacitor
= Required 660μF low ESR OS-Con, or
1,200μF aluminum electrolytic
L
in
/C
3
= Optional input filter components. 1μH input
choke and 100μF electroytic capacitor.
Ordering Information
Output Voltage
Progam Range
=1.300 to 2.70V
=1.075 to 1.85V
=1.075 to 1.85V
=1.050 to 1.825V 5V
=0.800 to 1.575V 3.3V
Input
Bus
5V
5V
3.3V
Part No.
PT 8101
PT 8102
PT 8103
PT 8104
PT 8105
40-A 3.3/5-V Input Programmable
Integrated Switching Regulator
SLTS157A
(Revised 8/23/2002)
PT8100 Series
(Except PT8104)
4
3
2
1
31
23–30
6
17–22
12–16
L
O
A
D
C
2
660μF
Required
+
C
1
1,500μF
Required
+
PROGRAMMING PINS
V
IN
V
OUT
GND
REMOTE SENSE
STBY*
VID0
VID1
VID2
VID3
VID4
VID
Common
L
1
1μH
GND
5
11
C
3
100μF
Optional
+
and input current ripple performance.
The modules are designed for high-
end computing and signal processing
applications, both of which demand
high output currents at low supply
voltages.
The modules have a number of
standard features to facilitate system
integration. These include short-
circuit protection, thermal shutdown,
standby (On/Off) control, and an
output remote sense to compensate
for voltage drop between the regu-
lator and the load. In addition, the
voltage programming codes are
compatible with Intel’s VRM
specifications.
Output Remote Sense
Short-Circuit Protection
Thermal Shutdown
Standby On/Off Control
Space-Saving Package
Solderable Copper Case
PT Series Suffix
(PT1234
x
)
Case/Pin
Configuration
Vertical
Horizontal
SMD
(Reference the applicable package code drawing for
the dimensions and PC board layout)
Order
Suffix
N
A
C
Package
C ode
(EKH)
(EKF)
(EKG)
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