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TS2937

Taiwan Semiconductor

Document Number: DS_P0000215 1 Version: E15

500mA Ultra Low Dropout Voltage Regulator

DESCRIPTION

TS2937 of fixed-voltage monolithic micro-power voltage

regulators is designed for a wide range of applications.

This device excellent choice of use in battery-power

application. Furthermore, the quiescent current

increases on slightly at dropout, which prolongs battery

life. This series of fixed-voltage regulators features very

low ground current (200uA Typ.) and very low drop

output voltage (Typ. 60mV at light load and 600mV at

500mA). This includes a tight initial tolerance of 2%,

extremely good line regulation of 0.05% typ., and very

low output temperature coefficient.

FEATURES

● Dropout voltage typically 0.6V @ Io=500mA

● Output voltage trimmed before assembly

● -18V Reverse peak voltage

● +30V Input over voltage protection

● +60V Transient peak voltage

● Internal current limit

● Thermal shutdown protection

APPLICATION

● Post Regulator for SMPS

● Industrial Instrumentation

220

263 (D

PAK)

252 (DPAK)

SOT

223

Definition

1. Input

2. Ground

3. Output

Notes: Moisture sensitivity level: level 3. Per J-STD-020

TYPICAL APPLICATION CIRCUIT

Summary of content (10 pages)

PAGE 1
TS2937 Taiwan Semiconductor 500mA Ultra Low Dropout Voltage Regulator DESCRIPTION FEATURES TS2937 of fixed-voltage monolithic micro-power voltage This device excellent choice of use in battery-power ● ● ● Dropout voltage typically 0.6V @ Io=500mA Output voltage trimmed before assembly -18V Reverse peak voltage application.
PAGE 2
TS2937 Taiwan Semiconductor ABSOLUTE MAXIMUM RATINGS (Note 1) PARAMETER Input Supply Voltage SYMBOL LIMIT UNIT VIN -18 ~ +60 V VOPR 26 V PD Internally Limited (Note 2) Operation Input Supply Voltage (Note 3) Power Dissipation Operating Junction Temperature Range TJ TSTG Storage Temperature Range W -40 ~ +125 o -65 ~ +150 o C C THERMAL PERFORMANCE PARAMETER LIMIT SYMBOL UNIT TO-220 TO-263 TO-252 SOT-223 RӨJA Junction to Ambient Thermal Resistance 60 80 150 170 °C/W Notes: R
PAGE 3
TS2937 Taiwan Semiconductor ELECTRICAL SPECIFICATIONS Note: 1. Absolute Maximum Rating is limits beyond which damage to the device may occur. For guaranteed specifications and test conditions see the electrical characteristics. 2. Maximum positive supply voltage of 60V must be limited duration (<100ms) and duty cycle (<1%). 3. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ, the junction to ambient thermal resistance, RӨJA, and the ambient temperature, Ta.
PAGE 4
TS2937 Taiwan Semiconductor BLOCK DIAGRAM APPLICATION INFORMATION The TS2937 series is a high performance with low dropout voltage regulator suitable for moderate to high current and voltage regulator application. Its 600mV(typ.) dropout voltage at full load and over temperature makes it especially valuable in battery power systems and as high efficiency noise filters in post regulator applications.
PAGE 5
TS2937 Taiwan Semiconductor APPLICATION INFORMATION (CONTINUED) Thermal Characteristics A heatsink may be required depending on the maximum power dissipation and maximum ambient temperature of the application. Under all possible operating conditions, the junction temperature must be within the range specified under absolute maximum ratings. To determine if the heatsink is required, the power dissipated by the regulator, PD must be calculated.
PAGE 6
TS2937 Taiwan Semiconductor PACKAGE OUTLINE DIMENSIONS (Unit: Millimeters) TO-220 MARKING DIAGRAM XX Y M L = Voltage Code ( 50=5.0V, 33=3.3V ) 33 =3.3V 50 =5.
PAGE 7
TS2937 Taiwan Semiconductor PACKAGE OUTLINE DIMENSIONS (Unit: Millimeters) TO-263 SUGGESTED PAD LAYOUT (Unit: Millimeters) MARKING DIAGRAM XX Y M L = Voltage Code ( 50=5.0V, 33=3.3V ) 33 =3.3V 50 =5.
PAGE 8
TS2937 Taiwan Semiconductor PACKAGE OUTLINE DIMENSIONS (Unit: Millimeters) TO-252 SUGGESTED PAD LAYOUT (Unit: Millimeters) MARKING DIAGRAM XX Y M L = Voltage Code ( 50=5.0V, 33=3.3V ) 33 =3.3V 50 =5.
PAGE 9
TS2937 Taiwan Semiconductor PACKAGE OUTLINE DIMENSIONS (Unit: Millimeters) SOT-223 SUGGESTED PAD LAYOUT (Unit: Millimeters) MARKING DIAGRAM XX Y M L = Voltage Code ( 50=5.0V, 33=3.3V ) 33 =3.3V 50 =5.
PAGE 10
TS2937 Taiwan Semiconductor Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document.