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LR9198 Dataheets PDF



Part Number LR9198
Manufacturers LRC
Logo LRC
Description CMOS LDO Regulator
Datasheet LR9198 DatasheetLR9198 Datasheet (PDF)

300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator LESHAN RADIO COMPANY, LTD. LR9198 FEATURES Ultra-low Noise for RF Application Ultra-Fast Response in Line/Load Transient <0.01µA Standby Current When Shutdown. Low Dropout:210mV@300mA Wide Operating Voltage Ranges:2V to 6V TTL-logic-Controlled Shutdown Input Low Temperature Coefficient Current Limiting Protection Thermal Shutdown Protection Only 1µF Output Capacitor Required for Stability High Power Supply Rejection Ratio Custom Voltage Avai.

  LR9198   LR9198



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300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator LESHAN RADIO COMPANY, LTD. LR9198 FEATURES Ultra-low Noise for RF Application Ultra-Fast Response in Line/Load Transient <0.01µA Standby Current When Shutdown. Low Dropout:210mV@300mA Wide Operating Voltage Ranges:2V to 6V TTL-logic-Controlled Shutdown Input Low Temperature Coefficient Current Limiting Protection Thermal Shutdown Protection Only 1µF Output Capacitor Required for Stability High Power Supply Rejection Ratio Custom Voltage Available Fast output discharge Available in 5-Lead SOT-23 and SC-70 Package APPLICATIONS Cellular and Smart Phones Battery-Powered Equipment Laptop, Palmtops, Notebook Computers Hand-Held Instruments PCMCIA Cards MP3/MP4/MP5 Players Portable Information Appliances DESCRIPTION The LR9198 is designed for portable RF and wireless applications with demanding performance and space requirements. The LR9198 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The LR9198 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LR9198 consumes less than 0.01µA in shutdown mode and has fast turn-on time less than 50µs. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the 5-lead SC-70 and SOT-23 packages. ORDERING INFORMATION LR9198 XX X X X XXX TYPICAL APPLICATION LR9198 28 AA Package: RN: SOT-23-5 URN: SC-70-5 Features P: Standard (default, lead free) VIN CIN 1 VIN VOUT 5 LR9198 2 GND VOUT COUT C: Customized Enable Option: Chip Enable 3 EN NC 4 A: active high with internal 8 MΩ pull down B: active low with internal 8 MΩ pull up Output Voltage Accuracy A: ±1% B: ±2% Application hints: Output capacitor (COUT≥2.2uF) is recommended in LR9198-1.2V application to Output Voltage: 12: 1.2V 15: 1.5V 18:1.8V 25:2.5V assure the stability of circuit. 28: 2.8V 30: 3.0V 33:3.3V 50:5.0V CT: custom fixed output (50mV step) 1 LESHAN RADIO COMPANY, LTD. Absolute Maximum Rating (Note 1) Input Supply Voltage (VIN) EN Input Voltage Output Voltage Output Current -0.3V to +6V -0.3V to +VIN -0.3V to VIN+0.3V 300mA Maximum Junction Temperature 125°C Operating Temperature Range (Note2) -40°C to 85°C Storage Temperature Range -65°C to 125°C Lead Temperature (Soldering, 10s) 300°C Package Information SOT23-5/SC70-5 TOP VIEW VIN 1 5 VOUT MARKING GND 2 Part Number LR9198-12 LR9198-15 LR9198-18 LR9198-25 LR9198-28 LR9198-30 LR9198-33 LR9198-50 EN 3 Top Mark E A Y W(Note3) EBYW ECYW EDYW EEYW EFYW EGYW EIYW 4 NC Temp Range -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C Thermal Resistance (Note 4) Package SOT23-5 SC70-5 ӨJA 250°C/W 333°C/W ӨJC 130°C/W 170°C/W Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LR9198 is guaranteed to meet performance specifications from 0°C to 70°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. Note 3: X: Product Code(LR9198:E) V: Voltage Code(1.2V:A, 1.5V:B, 1.8V:C, 2.5V:D, 2.8V:E, 3.0V:F, 3.3V:G, 5.0V:I) Y: Year of manufacturing(9:2009) W: Week of manufacturing(W:A-Z, a-z). Note 4: Thermal Resistance is specified with approximately 1 square of 1 oz copper. 2 LESHAN RADIO COMPANY, LTD. Pin Description PIN NAME FUNCTION 1 VIN Power Input Voltage. 2 GND Ground. Chip Enable Pin with two options. 3 EN A: active high with internal 8 MΩ pull down B: active low with internal 8 MΩ pull up 4 NC No Connection. 5 VOUT Output Voltage. Block Diagram LR9198 XX XA LR9198 XX XB 3 LESHAN RADIO COMPANY, LTD. Electrical Characteristics (Note 5) (VIN=3.6V, EN=VIN, CIN=COUT=1µF, TA=25℃, unless otherwise noted.) Parameter Symbol Conditions MIN Input Voltage Output Voltage Accuracy (Note 6) VIN ∆VOUT VIN=3.6V, IOUT=1mA 2 -1 -2 Current Limit Quiescent Current Dropout Voltage Line Regulation(Note 7) Load Regulation(Note 8) Output Voltage(Note 9) Temperature Coefficient ILIM IQ VDROP ∆VLINE ∆VLOAD TCVOUT RLOAD=1Ω VEN>1.2V, IOUT=0mA IOUT=200mA, VOUT=2.8V IOUT=300mA, VOUT=2.8V VIN=3.6V to 5.5V IOUT=1mA 1mA


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