參數(shù)資料
型號(hào): PT7681N
廠商: Texas Instruments, Inc.
英文描述: 30-A Programmable ISR With Margin Up/Down Controls
中文描述: 30帶有可編程ISR的設(shè)立保證金/下控制
文件頁(yè)數(shù): 1/12頁(yè)
文件大?。?/td> 251K
代理商: PT7681N
For technical support and more information, see inside back cover or visit www.ti.com
PT Series Suffix
(PT1234
x
)
Case/Pin
Order
Configuration Suffix
Vertical
N
Horizontal
A
SMD
C
(Reference the applicable package code
drawing for the dimensions and PC
board layout)
Package
Code
(ENE)
(ENF)
(ENG)
PT7681—5V
30-A Programmable ISR
With Margin Up/Down Controls
SLTS177
B
- DECEMBER 2002 - REVISED
JULY 2006
Features
5V Input Voltage
30A Output Current
4-bit Programmable Output:
2V to 3.5V
95% Efficiency
Margin Up/Down Controls
Differential Remote Sense
Description
The PT7681 Excalibur is a high
performance integrated switching regu-
lator (ISR), which is housed in a 27-pin
space-saving solderable copper pack-
age. Operating from a +5V input source,
the PT7681 delivers up to 30A of out-
put current over the adjustable output
voltage range of 2V to 3.5V. The high
output current and relatively small size
makes the PT7681 suitable for power-
ing high-end DSP, microprocessor,
and ASIC circuits requiring core or I/O
logic supply voltages as low as 2V. The
output voltage is programmable via a
4-bit input code.
Over-Current Protection
Over-Temperature Protection
27-Pin Solderable Copper Case
1.57in2 PCB Area (‘N’ Suffix)
IPC Lead-Free 2
Standard Application
C
in
C
out
= Required 330μF electrolytic
L
1
= Optional 1μH input choke
= Required 1500μF electrolytic
PT7681
4
3
2
1
26
20-25
12
5
13-19
7-11
L
O
A
D
C
OUT
+
C
IN
+
PROGRAMMING PINS
V
IN
V
OUT
GND
SENSE(+)
SENSE(–)
STBY
VID0
VID1
VID2
VID3
L1
1μH
GND
27
6
MARGUP
MARGDN
Ordering Information
PT7681
= 2 to 3.5 Volts
A special feature of the PT7681 is
the Margin Up and Margin Down
controls. These controls provide a
convenient method for testing the
load circuit over its supply voltage
margins during production and quali-
fication test programs.
Other features include output short-
circuit and over-temperature protection,
a standby on/off control, and a differ-
ential remote sense to compensate for
voltage drop between the regulator and
load.
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