Product Information

RT9173BGL5

RT9173BGL5 electronic component of Richtek

Datasheet
DDR TERMINATION REGULATOR, 2A, TO-252-5
Manufacturer: Richtek
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 0.9096 ea
Line Total: USD 0.91

0 - Global Stock
MOQ: 1  Multiples: 1
Pack Size: 1

 More Buying Options & Price Grid(s)

Availability Price Quantity
0 - WHS 1


Ships to you between Wed. 22 May to Tue. 28 May

MOQ : 1
Multiples : 1

Stock Image

RT9173BGL5
Richtek

1 : USD 0.9824
25 : USD 0.8436
100 : USD 0.8041
250 : USD 0.6759
500 : USD 0.6338
1000 : USD 0.5358

Read More Specifications

     
Manufacturer
Product Category
Brand
Memory Supported
Source / Sink Current
Supply Voltage Min
Supply Voltage Max
Ddr Regulator Case Style
No. Of Pins
Svhc
Input Voltage Max
Input Voltage Min
Ldo Regulator Case Style
No. Of Outputs
Operating Temperature Max
Operating Temperature Min
Output Current
Output Type
Primary Input Voltage
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Additional Infomation About Product

RT9173B 2A Bus Termination Regulator General Description Features The RT9173B regulator is designed to convert voltage zz z zz Support Both DDR I (1.25V ) and DDR II (0.9V ) TT TT supplies ranging from 1.7V to 6V into a desired output Requirements voltage of which adjusted by two external voltage divider zz z zz SOP-8 and TO-252-5 Packages resistors. The regulator is capable of sourcing or sinking zz z zz Capable of Sourcing and Sinking Current up to 2A of current while regulating an output voltage to zz z zz Current-limiting Protection within 40mV. zz z zz Thermal Protection zz z zz Integrated Power MOSFETs The RT9173B, used in conjunction with series termination zz z zz Generates Termination Voltages for SSTL-2 resistors, provides an excellent voltage source for active zz z zz High Accuracy Output Voltage at Full-Load termination schemes of high speed transmission lines as zz z zz Adjustable V by External Resistors OUT those seen in high speed memory buses and distributed zz z zz Minimum External Components backplane designs. The voltage output of the regulator can zz z zz Shutdown for Standby or Suspend Mode Operation be used as a termination voltage for DDR SDRAM. with High-impedance Output Current limits in both sourcing and sinking mode, plus on- zz z zz RoHS Compliant and 100% Lead (Pb)-Free chip thermal shutdown make the circuit tolerant of the output fault conditions. Applications The RT9173B are available in the popular 5-lead TO-252 z DDR Memory Termination Supply and fused SOP-8 (the multiple V pins on the SOP-8 CNTL z Active Termination Buses package are internally connected but lowest thermal z Desktop PC/AGP Graphics resistance) surface mount packages. z Set Top Box/IPC z Supply Splitter Ordering Information Pin Configurations RT9173B (TOP VIEW) Package Type S : SOP-8 VIN 8 VCNTL L5 : TO-252-5 GND 2 7 VCNTL Lead Plating System REFEN 3 6 VCNTL P : Pb Free VOUT 4 5 VCNTL G : Green (Halogen Free and Pb Free) Note : SOP-8 Richtek products are : RoHS compliant and compatible with the current require- 5 VOUT ments of IPC/JEDEC J-STD-020. 4 REFEN Suitable for use in SnPb or Pb-free soldering processes. 3 VCNTL (TAB) 2 GND 1 VIN TO-252-5 DS9173B-10 April 2011 www.richtek.com 1RT9173B Typical Application Circuit V = 3.3V CNTL V = 2.5V IN R C TT CNTL C R VCNTL IN 1 VIN RT9173B REFEN VOUT 2N7002 EN GND R 2 C OUT R DUMMY R = R = 100k, R = 50 / 33 / 25 1 2 TT C = 10F (Ceramic) + 1000F under the worst case testing condition OUT(MIN) R = 1k as for VOUT discharge when VIN is not present but VCNTL is present DUMMY C = 470F (Low ESR), C = 47F IN CNTL Test Circuit 3.3V 2.5V VCNTL VIN RT9173B V OUT 1.25V REFEN VOUT V GND C OUT I L Figure 1. Output Voltage Tolerance, V OUT 3.3V 2.5V A VCNTL VIN 1.25V RT9173B V OUT 1.25V REFEN VOUT 0V GND C OUT R L 0.2V V R and C L OUT Time deleay Figure 2. Current in Shutdown Mode, SHDN www.richtek.com DS9173B-10 April 2011 2

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