TPS72301

TPS72325

SLVS346−SEPTEMBER 2003

200mA LOW NOISE, HIGHPSRR NEGATIVE OUTPUT

LOW DROPOUT LINEAR REGULATORS

FEATURES

200 mA, 2.5 V

(−1.2 V to −10 V) Versions

Capacitor

Shutdown Mode

Temperature)

Temperature Range

APPLICATIONS

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

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

1

GND

IN

EN

OUT

NR

Fixed Option

3

2

4

5

DBV PACKAGE (TOP VIEW)

TPS72301

1

GND

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

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

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.

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Copyright

 2003, Texas Instruments Incorporated