參數(shù)資料
型號(hào): TPS74812DRCR
廠商: Texas Instruments, Inc.
英文描述: 1.5A LDO Linear Regulator with Programmable Soft-Start
中文描述: 1.5A的LDO線性穩(wěn)壓器,具有可編程軟啟動(dòng)
文件頁(yè)數(shù): 1/19頁(yè)
文件大小: 351K
代理商: TPS74812DRCR
www.ti.com
FEATURES
Ultra-Low V
IN
and V
OUT
Range: 0.8V to 5.5V
V
BIAS
Range 2.7V to 5.5V
Low Dropout: 60mV typ at 1.5A, V
BIAS
= 5V
Power Good (PG) Output Allows Supply
Monitoring or Provides a Sequencing Signal
for Other Supplies
2% Accuracy Over Line/Load/Temperature
Programmable Soft-Start Provides Linear
Voltage Startup
V
BIAS
Permits Low V
IN
Operation with Good
Transient Response
Stable with Any Output Capacitor
2.2
μ
F
Available in a Small 3mm x 3mm x 1mm
SON-10 Package
DESCRIPTION
The TPS74801 low-dropout (LDO) linear regulator
provides an easy-to-use robust power management
solution
for
a
wide
User-programmable soft-start minimizes stress on
the input power source by reducing capacitive inrush
current on start-up. The soft-start is monotonic and
well-suited for powering many different types of
processors
and
ASICs.
power-good output allow easy sequencing with
external regulators. This complete flexibility permits
the user to configure a solution that meets the
sequencing requirements of FPGAs, DSPs, and
other applications with special start-up requirements.
APPLICATIONS
FPGA Applications
DSP Core and I/O Voltages
Post-Regulation Applications
Applications With Special Start-Up Time or
Sequencing Requirements
Hot-Swap and Inrush Controls
0.5V/div
V
OUT
V
EN
1V/div
Time (1ms/div)
C
SS
= 2.2nF
C
SS
= 1nF
C
SS
= 0nF
3.8V
1.8V
TPS74801
GND
EN
FB
IN
PG
BIAS
SS
OUT
V
IN
R
1
R
2
R
3
C
OUT
C
IN
C
SS
V
BIAS
C
BIAS
V
OUT
TPS74801
SBVS074–JANUARY 2007
1.5A LDO Linear Regulator with Programmable Soft-Start
variety
of
applications.
The
enable
input
and
A precision reference and error amplifier deliver 2%
accuracy over load, line, temperature, and process.
The device is stable with any output capacitor type,
and is fully specified from –40
°
C to +125
°
C. The
TPS74801 is offered in a small 3mm
×
3mm SON-10
package, yielding a highly compact, total solution
size.
Figure 2. Turn-On Response
Figure 1. Typical Application Circuit (Adjustable)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 2007, Texas Instruments Incorporated
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