数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

TS2938 数据表(PDF) 4 Page - Taiwan Semiconductor Company, Ltd

部件名 TS2938
功能描述  500mA Ultra Low Dropout Voltage Regulator with Inhibit Function
Download  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TSC [Taiwan Semiconductor Company, Ltd]
网页  http://www.taiwansemi.com
标志 TSC - Taiwan Semiconductor Company, Ltd

TS2938 数据表(HTML) 4 Page - Taiwan Semiconductor Company, Ltd

  TS2938_08 Datasheet HTML 1Page - Taiwan Semiconductor Company, Ltd TS2938_08 Datasheet HTML 2Page - Taiwan Semiconductor Company, Ltd TS2938_08 Datasheet HTML 3Page - Taiwan Semiconductor Company, Ltd TS2938_08 Datasheet HTML 4Page - Taiwan Semiconductor Company, Ltd TS2938_08 Datasheet HTML 5Page - Taiwan Semiconductor Company, Ltd TS2938_08 Datasheet HTML 6Page - Taiwan Semiconductor Company, Ltd  
Zoom Inzoom in Zoom Outzoom out
 4 / 6 page
background image
TS2938
500mA Ultra Low Dropout Voltage Regulator
with Inhibit Function
4/6
Version: D07
Application Information (Continue)
Output Capacitor
The TS2938 series requires an output capacitor to maintain stability and improve transient response. Proper
capacitor selection is important to ensure proper operation. The output capacitor selection is dependent upon the
ESR of the output capacitor the maintain stability. When the output capacitor is 6.8uF or greater, the output capacitor
should have an ESR less than 2 ohm. This will improve transient response as well as promoted stability. Ultra low
ESR capacitors (<100mohm), such as ceramic chip capacitors may promote instability. These very low ESR levels
may cause an oscillation and/or under damped transient response. A low ESR solid tantalum capacitor works
extremely well and provide good transient response and stability over temperature. Aluminum electrolytic can also be
used, as long as the ESR of the capacitor is <2ohm. The value of the output capacitor can be increased without limit.
Higher capacitance values help to improved transient response and ripple rejection and reduce output noise.
Minimum Load Current
The TS2938 series is specified between finite loads. If the output current is too small leakage currents dominate and
the output voltage rises. A 5mA minimum load current is necessary for proper regulation.
Input Capacitor
An input capacitor of 1uF or greater is recommended when the device is more that 4 inches away from the bulk AC
supply capacitance or when the supply is a battery. Small and surface mount ceramic chip capacitors can be used
for bypassing. Larger values will help to improve ripple rejection by bypassing the input to the regulator, further
improving the integrity of the output voltage.
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
The next parameter which must be calculated 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 125
oC for commercial grade parts. TA(max)
is the maximum ambient temperature which will be encountered in the application.
Using the calculated values for TA(max) and PD, the maximum allowable value for the junction to ambient thermal
resistance, θJA, can now be found:
θJA = TR(max) / PD
Inhibit Input
TS2938 feature an active-low (Inhibit) input that allows ON/OFF control of the regulator. The Inhibit input has
TTL/CMOS compatible thresholds for simple interfacing with logic interfacing. Inhibit should be directly tied to
Ground or keep open (not connected).


类似零件编号 - TS2938_08

制造商部件名数据表功能描述
logo
Taiwan Semiconductor Co...
TS2938 TSC-TS2938_07 Datasheet
302Kb / 7P
   500mA Ultra Low Dropout Voltage Regulator with Inhibit Function
More results

类似说明 - TS2938_08

制造商部件名数据表功能描述
logo
Taiwan Semiconductor Co...
TS2938CS12 TSC-TS2938CS12 Datasheet
102Kb / 6P
   500mA Ultra Low Dropout Voltage Regulator with Inhibit Function
TS2938 TSC-TS2938_15 Datasheet
144Kb / 7P
   500mA Ultra Low Dropout Voltage Regulator With Inhibit Function
TS2938 TSC-TS2938_07 Datasheet
302Kb / 7P
   500mA Ultra Low Dropout Voltage Regulator with Inhibit Function
TS2938 TSC-TS2938 Datasheet
108Kb / 5P
   500mA Ultra Low Dropout Fixed Voltage Regulator with Inhibit
logo
STMicroelectronics
LEXX STMICROELECTRONICS-LEXX Datasheet
1Mb / 24P
   Very low-dropout voltage regulator with inhibit function
May 2017 Rev 15
logo
Taiwan Semiconductor Co...
TS2937CZ50 TSC-TS2937CZ50 Datasheet
247Kb / 10P
   500mA Ultra Low Dropout Voltage Regulator
TS2937 TSC-TS2937_08 Datasheet
568Kb / 10P
   500mA Ultra Low Dropout Voltage Regulator
TS2937 TSC-TS2937_13 Datasheet
318Kb / 10P
   500mA Ultra Low Dropout Voltage Regulator
TS2937 TSC-TS2937_07 Datasheet
443Kb / 10P
   500mA Ultra Low Dropout Voltage Regulator
logo
Acutechnology Semicondu...
AQ533 ACUTECH-AQ533 Datasheet
633Kb / 10P
   Ultra-Low Dropout 500mA Voltage Regulator
More results


Html Pages

1 2 3 4 5 6


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com