BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator 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 BL9198 is designed for portable RF and wireless applications with demanding performance and space requirements. The BL9198 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 BL9198 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The BL9198 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 TYPICAL APPLICATION BL9198 XX X X X XXX BL9198 28 AA Package: RN: SOT-23-5 URN: SC-70-5 Features P: Standard (default, lead free) C: Customized VIN 1 C1 1uF 2 Chip Enable 3 Enable Option: 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% Output Voltage: 12: 1.2V 13:1.3V 15: 1.5V 18:1.8V 25:2.5V 27:2.7V 28:2.8V 285: 2.85V 30: 3.0V 32:3.2V 33:3.3V 50:5.0V CT: custom fixed output (50mV step) PPMIC BU BL9198 Rev 1.9 3/2011 VIN VOUT 5 VOUT C2 1uF GND BL9198 EN NC 4 Application hints: ≥ Output capacitor (C2 2.2uF) is recommended in BL9198-1.2V, BL9198-1.3V, BL9198-1.5V and BL9198-1.8V application to assure the stability of circuit. www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 1 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Absolute Maximum Rating Input Supply Voltage (VIN) EN Pin Input Voltage Output Voltages Output Current (Note 1) -0.3V to +6V -0.3V to VIN -0.3V to VIN+0.3V 300mA Maximum Junction Temperature 150°C (Note2) Operating Temperature Range -40°C to 85°C Storage Temperature Range -65°C to 125°C Lead Temperature (Soldering, 10s) 300°C Package Information Thermal Resistance (Note 4): Package SOT23-5 SC70-5 SOT23 SOT2323-5/SC70 SC7070-5 TOP VIEW VIN 1 Part Number VOUT 4 NC 3 Top Mark Temp Range (Note3) BL9198-12 DAYW BL9198-13 DBYW -40°C to +85°C BL9198-15 DCYW -40°C to +85°C BL9198-18 DDYW -40°C to +85°C BL9198-25 DEYW -40°C to +85°C BL9198-27 DFYW -40°C to +85°C BL9198-28 DGYW -40°C to +85°C BL9198-285 DHYW -40°C to +85°C BL9198-30 DIYW -40°C to +85°C BL9198-32 DJYW -40°C to +85°C BL9198-33 DKYW -40°C to +85°C BL9198-50 DLYW -40°C to +85°C A 1.2V Y Year B 1.3V C 1.5V -40°C to +85°C D 1.8V E 2.5V F 2.7V G 2.8V 9 2009 A 2010 B 2011 C 2012 D 2013 A 1 … … Y 25 Z 26 a 27 W Week ӨJC 130°C/W 170°C/W MARKING GND 2 EN 5 ӨJA 250°C/W 333°C/W H 2.85V … … I 3.0V y 51 J 3.2V K 3.3V L 5.0V z 52 Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The BL9198 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: D: Product code of BL9198 A-L: Voltage code Y: Year of wafer manufacturing W: Week of wafer manufacturing. Note 4: Thermal Resistance is specified with approximately 1 square of 1 oz copper. PPMIC BU BL9198 Rev 1.9 3/2011 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 2 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Pin Description PIN 1 2 NAME VIN GND 3 EN 4 5 NC VOUT FUNCTION Power Input Voltage. Ground. Chip Enable Pin with two options. A: active high with internal 8 MΩ pull down B: active low with internal 8 MΩ pull up No Connection. Output Voltage. Block Diagram BL9198 XX XA PPMIC BU BL9198 Rev 1.9 3/2011 BL9198 XX XB www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 3 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Electrical Characteristics (Note 5) (VIN=3.6V, EN=VIN, CIN=COUT=1µF, TA=25 Parameter Symbol Input Voltage VIN Output Voltage Accuracy ∆VOUT (Note 6) (Note 7) ∆VLINE (Note 8) ∆VLOAD TCVOUT IOUT=1mA ILIM IQ Dropout Voltage VDROP Load Regulation (Note 9) Output Voltage Temperature Coefficient Standby Current ISTBY EN Input Bias Current IIBSD EN Input Threshold Conditions VIN=3.6V, IOUT=1mA 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<IOUT<300mA Current Limit Quiescent Current Line Regulation ℃, unless otherwise noted.) Logic Low VIL Logic High VIH Output Noise Voltage Power f=217Hz Supply f=1KHz Rejection f=10KHz Ratio Thermal Shutdown Temperature Thermal Shutdown Hysteresis VEN=GND, Shutdown VEN=GND or VIN VIN=3V to 5.5V, Shutdown VIN=3V to 5.5V, Start up 10Hz to100KHz, IOUT=200mA eNO MIN 2 -1 -2 400 TYP MAX 6 +1 +2 unit V % 430 90 130 mA µA 130 180 210 300 0.05 0.17 %/V 2 %/A mV ±60 0.01 ℃ ppm/ 1 µA 500 nA 0.4 V 1.2 V 100 µVRMS -78 PSRR IOUT=100mA dB -72 -52 Shutdown, Temp increasing TSD TSDHY ℃ ℃ 165 30 Note 5: 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization. Note 6: This IC includes two kinds of output voltage accuracy versions. A: ±1%, B: ±2%. VOUT 1 − VOUT 2 ∆V × V OUT ( normal ) IN Note 7: Line regulation is calculated by ∆V LINE = × 100 Where VOUT1 is the output voltage when VIN=5.5V, and VOUT2 is the output voltage when VIN=3.6V, VIN=1.9V . VOUT (normal) =2.8V. △ VOUT 1 − VOUT 2 Note 8: Load regulation is calculated by ∆V ×100 LOAD = ∆I × V OUT OUT ( normal ) Where VOUT1 is the output voltage when IOUT=1mA, and VOUT2 is the output voltage when IOUT=300mA. VOUT(normal)=2.8V. ∆VOUT Note 9: The temperature coefficient is calculated by TC VOUT = ∆T × VOUT PPMIC BU BL9198 Rev 1.9 3/2011 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved △I OUT=0.299A, 4 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Typical Performance Characteristics Output Voltage Vs. Temperature Quiescent Current Vs. Temperature 140 3.0 VIN=3.6V Output Voltage(V) Quiescent Current(uA) CIN=COUT=1uF 2.9 VIN=3.6V CIN=COUT=1uF 130 2.8 2.7 120 110 100 90 80 2.6 70 2.5 -50 -25 0 25 50 75 100 60 -50 125 -25 0 25 50 Dropout Voltage Vs. Load Current VIN=4.2V CIN=1uF,COUT=1uF,X7R -10 ILOAD=1mA ILOAD=100mA ILOAD=200mA -20 -30 200 PSRR(dB) Dropout Voltage(mV) 125 PSRR CIN=COUT=1uF 250 150 100 -40 -50 -60 TJ=85°C TJ=25°C TJ=-40°C 50 0 50 100 150 200 250 -70 -80 300 -90 10 100 Load Current(mA) 1000 10000 100000 Frequency(Hz) EN Pin Shutdown Threshold Vs. Temperature Current Limit Vs. Input Voltage 500 1.05 VIN=3.6V 1.00 480 CIN=COUT=1uF CIN=COUT=1uF VOUT=2.8V 460 Current Limit(mA) EN Pin Shutdown Threshold(V) 100 0 300 0 75 Temperature(°C) Temperaute(°C) 0.95 0.90 0.85 440 420 400 380 360 0.80 340 320 0.75 -50 -25 0 25 50 Temperature(°C) PPMIC BU BL9198 Rev 1.9 3/2011 75 100 125 300 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Input Voltage(V) www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 5 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator PPMIC BU BL9198 Rev 1.9 3/2011 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 6 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Output Voltage(V) VOUT Vs.VIN 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.0 CIN=COUT=1uF ILoad=1mA ILoad=100mA ILoad=300mA 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Input Voltage(V) PPMIC BU BL9198 Rev 1.9 3/2011 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 7 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Applications Information Like any low-dropout regulator, the external capacitors used with the BL9198 must be carefully selected for regulator stability and performance. Using a capacitor whose value is > 1µF on the BL9198 input and the amount of capacitance can be increased without limit. The input capacitor must be located a distance of not more than 0.5 inch from the input pin of the IC and returned to a clean analog ground. Any good quality ceramic or tantalum can be used for this capacitor. The capacitor with larger value and lower ESR (equivalent series resistance) provides better PSRR and line-transient response. The output capacitor must meet both requirements for minimum amount of capacitance and ESR in all LDOs application. The BL9198 is designed specifically to work with low ESR ceramic output capacitor in space-saving and performance consideration. Using a ceramic capacitor whose value is at least 1µF with ESR is > 25mΩ on the BL9198 output ensures stability. The BL9198 still works well with output capacitor of other types due to the wide stable ESR range. Output capacitor of larger capacitance can reduce noise and improve load transient response, stability, and PSRR. The output capacitor should be located not more than 0.5 inch from the VOUT pin of the BL9198 and returned to a clean analog ground. Enable Function The BL9198 features an LDO regulator enable/disable function. To assure the LDO regulator will switch on; the EN turn on control level must be greater than 1.2 volts. The LDO regulator will go into the shutPPMIC BU BL9198 Rev 1.9 3/2011 down mode when the voltage on the EN pin falls below 0.4 volts. For to protect the system, the BL9198 have a quick discharge function. If the enable function is not needed in a specific application, it may be tied to VIN to keep the LDO regulator in a continuously on state. Thermal Considerations Thermal protection limits power dissipation in BL9198. When the operation junction temperature exceeds 165°C, the OTP circuit starts the thermal shutdown function turn the pass element off. The pass element turns on again after the junction temperature cools by 30°C. For continue operation, do not exceed absolute maximum operation junction temperature 125°C. The power dissipation definition in device is: PD(MAX) = ( TJ(MAX) − TA ) /θJA Where TJ(MAX) is the maximum operation junction temperature 125°C, TA is the ambient temperature and the θJA is the junction to ambient thermal resistance. For recommended operating conditions specification of BL9198, where TJ(MAX) is the maximum junction temperature of the die (125°C) and TA is the maximum ambient temperature. The junction to ambient thermal resistance (θJA is layout dependent) for SOT-23-5 package is 250°C/W, SC-705 package is 333°C/W, on standard JEDEC 51-3 thermal test board. The maximum power dissipation at TA= 25°C can be calculated by following formula: PD(MAX) = (125°C−25°C)/333 = 300mW (SC-70-5) www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 8 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator PD(MAX) = (125°C−25°C)/250 = 400mW (SOT-23-5) The maximum power dissipation depends on operating ambient temperature for fixed TJ(MAX) and thermal resistance θJA. It is also useful to calculate the junction of temperature of the BL9198 under a set of specific conditions. In this example let the Input voltage VIN=3.3V, the output current Io=300mA and the case temperature TA=40°C measured by a thermal couple during operation. The power dissipation for the VOUT=2.8V version of the BL9198 can be calculated as: PD = (3.3V−2.8V) ×300mA+3.6V×100uA =150mW And the junction temperature, TJ, can be calculated as follows: TJ=TA+PD×θJA=40°C+0.15W×250°C/W =40°C+37.5°C=77.5°C<TJ(MAX) =125°C For this operating condition, TJ is lower than the absolute maximum operating junction temperature,125°C, so it is safe to use the BL9198 in this configuration. Layout considerations To improve ac performance such as PSRR, output noise, and transient response, it is recommended that the PCB be designed with separate ground planes for VIN and VOUT, with each ground plane connected only at the GND pin of the device. PPMIC BU BL9198 Rev 1.9 3/2011 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 9 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator BL9198-2.8V Layout Circuit VIN VIN 1 C4 1uF C1 1uF 2 JP 1 2 3 3 1 VIN BL9198 Rev 1.9 3/2011 VOUT 5 BL9198 C2 1uF GND EN VOUT NC 4 2 3 TOP Layer Layout PPMIC BU VIN BOTTOM Layer Layout www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 10 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Package Description Symbol A A1 B b C D e H L Dimensions In Millimeters Dimensions In Inches Min Max Min Max 0.800 0.000 1.150 0.150 1.800 1.800 1.100 0.100 1.350 0.400 2.450 2.250 0.031 0.000 0.045 0.006 0.071 0.071 0.044 0.004 0.054 0.016 0.096 0.089 0.650 0.026 0.080 0.260 0.003 0.010 0.210 0.460 0.008 0.018 SC-70-5 Surface Mount Package PPMIC BU BL9198 Rev 1.9 3/2011 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 11 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Package type SC70-5 Number of devices per reel 3000 Tape dimension Taping reel dimension PPMIC BU BL9198 Rev 1.9 3/2011 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 12 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Symbol A A1 B b C D e H L Dimensions In Millimeters Min 0.889 0.000 1.397 0.356 2.591 2.692 0.838 0.080 0.300 Max 1.295 0.152 1.803 0.559 2.997 3.099 1.041 0.254 0.610 Dimensions In Inches Min 0.035 0.000 0.055 0.014 0.102 0.106 0.033 0.003 0.012 Max 0.051 0.006 0.071 0.022 0.118 0.122 0.041 0.010 0.024 SOT-23-5 Surface Mount Package PPMIC BU BL9198 Rev 1.9 3/2011 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 13 BL9198 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Package type SOT23-5 （ Number of devices per reel 3000 ） Tape dimension Default: Type I Type I Type II Taping reel dimension PPMIC BU BL9198 Rev 1.9 3/2011 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 14