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TPS72301DBVR 产品手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
稳压芯片
封装:
SOT-23-5
描述:
200毫安低噪声，高PSRR负输出低压差线性稳压器 200 mA LOW NOISE HIGH PSRR NEGATIVE OUTPUT LOW DROPOUT LINEAR REGULATORS
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TPS72301DBVR数据手册
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SLVS346−SEPTEMBER 2003
FEATURES
D Ultralow Noise: 60-µV
RMS
Typical
D High PSRR: 65-dB Typical at 1 kHz
D Low Dropout Voltage: 280-mV Typical at
200 mA, 2.5 V
D Available in −2.5 V, and Adjustable
(−1.2 V to −10 V) Versions
D Stable With a 2.2-µF Ceramic Output
Capacitor
D Less Than 2-µA Typical Quiescent Current in
Shutdown Mode
D 2% Overall Accuracy (Line, Load,
Temperature)
D Thermal and Overcurrent Protection
D 5-Pin SOT-23 (DBV) Package
D −40°C to 125°C Operating Junction
Temperature Range
APPLICATIONS
D Optical Drives
D Optical Networking
D Noise Sensitive Circuitry
D GaAs FET Gate Bias
D Video Amplifiers
DESCRIPTION
The TPS723xx family of low-dropout (LDO) negative
voltage regulators offers an ideal combination of features
to support low noise applications. The devices are capable
of operating with input voltages from −10 V to −2.7 V, and
supporting outputs from −10 V to −1.2 V. These regulators
are stable with small, low-cost ceramic capacitors, and
include enable (EN) and noise reduction (NR) functions.
Thermal short-circuit and over-current protections are
provided by internal detection and shutdown logic. High
PSRR (65 dB at 1 k Hz) and low noise (60 µV
RMS
) make
the TPS723xx ideal for low-noise applications.
The TPS723xx uses a precision voltage reference to
achieve 2% overall accuracy over load, line, and
temperature variations. Available in a small SOT23−5
package, the TPS723xx family is fully specified over a
temperature range of −40°C to 125°C.
3
2
4
5
DBV PACKAGE (TOP VIEW)
TPS723xx
1GND
IN
EN
OUT
NR
Fixed Option
3
2
4
5
DBV PACKAGE (TOP VIEW)
TPS72301
1GND
IN
EN
OUT
FB
Adjustable Option
ON
ON
OFF
GND
+1.5 V
−1.5 V
OUT
NR
GND
EN
IN
3
2
4
1
5
TYPICAL APPLICATION CIRCUIT
ON
ON
OFF
GND
+1.5 V
−1.5 V
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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.
www.ti.com
Copyright 2003, Texas Instruments Incorporated
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