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TS2937 데이터시트 PDF




Taiwan Semiconductor Company에서 제조한 전자 부품 TS2937은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 TS2937 자료 제공

부품번호 TS2937 기능
기능 500mA Ultra Low Dropout Fixed Positive Voltage Regulator
제조업체 Taiwan Semiconductor Company
로고 Taiwan Semiconductor Company 로고


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TS2937 데이터시트, 핀배열, 회로
TO-220
TS2937
500mA Ultra Low Dropout Voltage Regulator
TO-263
(D2PAK)
TO-252
(DPAK)
SOT-223
Pin Definition:
1. Input
2. Ground
3. Output
General 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
Block Diagram
Ordering Information
Part No.
Package
Packing
TS2937CZxx C0 TO-220
50pcs / Tube
TS2937CMxx RN TO-263 800pcs / 13” Reel
TS2937CPxx RO TO-252 2.5Kpcs / 13” Reel
TS2937CWxx RP SOT-223 2.5Kpcs / 13” Reel
Note: Where xx denotes voltage option, available are
12= 12V
50= 5V
33= 3.3V
Contact factory for additional voltage options.
Absolute Maximum Rating
Parameter
Input Supply Voltage
Operation Input Supply Voltage
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
Symbol
VIN
VOPR
PD
TJ
TSTG
Limit
-18 ~ +60
26
Internally Limited
-40 ~ +125
-65 ~ +150
Unit
V
V
W
oC
oC
1/10 Version: D13




TS2937 pdf, 반도체, 판매, 대치품
TS2937
500mA Ultra Low Dropout Voltage Regulator
Application Information (Continue)
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.
The below formula shows the voltages and currents for calculating the PD in the regulator:
IIN = IL / IG
PD = (VIN-VOUT) * IL + (VIN) * IG
Ex. PD = (3.3V-2.5V) * 0.5A + 3.3V * 11mA
= 400mW + 36mW
= 436mW
Remark: IL is output load current,
IG is ground current.
VIN is input voltage
VOUT is output voltage
The next parameter which must be calculated is the maximum allowable temperature rise.
TR(max) is calculated by the using to formula:
TR(max) = TJ(max) – TA(max)
Where: TJ(max) is the maximum allowable junction temperature, which is 125oC for commercial grade parts.
TA(max) is the maximum ambient temperature which will be encountered in the application.
Using the calculated values for TR(max) and PD, the maximum allowable value for the junction to ambient thermal
resistance, θja, can now be found:
θja = TR(max) / PD
IMPORTANT: if the maximum allowable value for is found to be 6 oC /W for the TO-220 package, 80oC/W for the
TO-263 package, 150oC/W for the TO-252 package, or 170oC /W for the SOT-223 package, no heatsink is
needed since the package alone will dissipate enough heat to satisfy these requirements. If the calculated value for
θja falls below these limits, a heatsink is required.
4/10 Version: D13

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TS2937 전자부품, 판매, 대치품
TS2937
500mA Ultra Low Dropout Voltage Regulator
TO-263 Mechanical Drawing
Unit: Millimeters
Marking Diagram
Y = Year Code
M = Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
L = Lot Code
XX = Voltage Code
(3.3=3.3V, 5.0=5V, 12=12V)
7/10 Version: D13

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