TPS7A30xx
www.ti.com
SBVS125 –AUGUST 2010
–36V, –200mA, Ultralow-Noise, Negative LINEAR REGULATOR
1
FEATURES
DESCRIPTION
23
•
Input Voltage Range: –3V to –36V
The TPS7A30xx series of devices are negative,
high-voltage (–36V), ultralow-noise (15.1mVRMS, 72dB
•
Noise:
PSRR) linear regulators capable of sourcing
maximum load of 200mA.
a
–
–
14mVRMS (20Hz to 20kHz)
15.1mVRMS (10Hz to 100kHz)
These
logic-level-compatible
linear
regulators
include
a
pin
CMOS
and
•
Power-Supply Ripple Rejection:
enable
–
–
72dB (120Hz)
capacitor-programmable soft-start function that allows
for customized power-management schemes. Other
features available include built-in current limit and
thermal shutdown protection to safeguard the device
and system during fault conditions.
≥ 55dB (10Hz to 700kHz)
•
•
•
•
•
•
Adjustable Output: –1.18V to –33V
Maximum Output Current: 200mA
Dropout Voltage: 216mV at 100mA
Stable with Ceramic Capacitors ≥ 2.2mF
CMOS Logic-Level-Compatible Enable Pin
The TPS7A30xx family is designed using bipolar
technology, and is ideal for high-accuracy,
high-precision instrumentation applications where
clean voltage rails are critical to maximize system
performance. This design makes it an excellent
Built-In, Fixed, Current-Limit and Thermal
Shutdown Protection
choice
to
power
operational
amplifiers,
•
•
Available in High Thermal Performance
MSOP-8 PowerPAD™ Package
analog-to-digital converters (ADCs), digital-to-analog
converters (DACs), and other high-performance
analog circuitry.
Operating Tempature Range: –40°C to +125°C
In addition, the TPS7A30xx family of linear regulators
is suitable for post dc/dc converter regulation. By
filtering out the output voltage ripple inherent to dc/dc
switching conversion, maximum system performance
is provided in sensitive instrumentation, test and
measurement, audio, and RF applications.
APPLICATIONS
•
Supply Rails for Op Amps, DACs, ADCs, and
Other High-Precision Analog Circuitry
•
•
Audio
Post DC/DC Converter Regulation and Ripple
Filtering
For applications where positive and negative
high-performance rails are required, consider TI’s
•
•
•
•
•
Test and Measurement
RX, TX, and PA Circuitry
Industrial Instrumention
Base Stations and Telecom Infrastrucure
–12V and –24V Industrial Buses
TPS7A49xx
family
of
positive
high-voltage,
ultralow-noise linear regulators.
Typical Application
DGN PACKAGE
3mm ´ 5mm MSOP-8 PowerPAD
(TOP VIEW)
IN
OUT
+15V
+18V
TPS7A49
1
2
3
4
OUT
FB
8
7
6
5
IN
EN
GND
DNC
NR/SS
EN
NC
GND
-18V
IN
OUT
-15V
TPS7A30
EN GND
EVM
Post DC/DC Converter Regulation for
High-Performace Analog Circuitry
1
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.
2
3
PowerPAD is a trademark of Texas Instruments.
All other 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 © 2010, Texas Instruments Incorporated