BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator FEATURES Hand-Held Instruments PCMCIA Cards MP3/MP4/MP5 Players Portable Information Appliances Ultra-low Noise for RF Application Ultra-Fast Response in Line/Load Transient Quick Start-Up (Typically 50µS) <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 DESCRIPTION The BL9193 is designed for portable RF and wireless applications with demanding performance and space requirements. The BL9193 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The BL9193 also works with lowESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The BL9193 consumes less than 0.01µA in shutdown mode and has fast turnon 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 of SC-70,SOT-23,packages. ORDERING INFORMATION TYPICAL APPLICATION BL9193 XX X X X XXX BL9193 28 AB Package: RN:SOT-23-5 URN:SC-70-5 3V-5.5V Features P:Standard(default, lead free) C:Customized Enable Option: A: active high with internal 8 MΩ pull down B: active high with external pull down C: active low with internal 2 MΩ pull up D: active low with external pull up Output Voltage: 12:1.2V 15:1.5V 18:1.8V 25:2.5V 28:2.8V 30:3.0V 33:3.3V CT: custom fixed output (50mV step) AD: Adjustable BL9193 Rev 1.4 2/2009 2 VIN VOUT 5 2.8V C2 2.2uF GND BL9193 28AB Chip Enable Output Voltage Accuracy A:±1% B:±2% PPMIC BU 1 C1 1uF 3 EN BP R1 100k 4 C3 22nF Application hints: Output capacitor (C2≥2.2uF) is recommended in BL9193-1.2V application to assure the stability of circuit. www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2009 Belling All Rights Reserved 1 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Absolute Maximum Rating Input Supply Voltage (VCC) EN Input Voltage Output Voltage BP Voltage Output Current (Note 1) -0.3V to +6V -0.3V to +Vin -0.3V to Vin+0.3V -0.3V to +6V 300mA Maximum Junction Temperature 125°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 SOT23 SOT2323-5/SC70 SC7070-5 TOP VIEW VIN 1 5 MARKING GND 2 EN Part Number VOUT 3 4 BP/FB Top Mark Temp Range (Note3) BL9193-12 -40°C to +85°C XVYW BL9193-15 XVYW -40°C to +85°C BL9193-18 XVYW -40°C to +85°C BL9193-25 XVYW -40°C to +85°C BL9193-28 XVYW -40°C to +85°C BL9193-30 XVYW -40°C to +85°C BL9193-33 XVYW -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 BL9193 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 V:Voltage Code Y:Year of manufacturing W:Week of manufacturing Note 4: Thermal Resistance is specified with approximately 1 square of 1 oz copper. PPMIC BU BL9193 Rev 1.4 2/2009 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2009 Belling All Rights Reserved 2 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Pin Description PIN 1 2 NAME VIN GND 3 EN 4 5 BP/FB VOUT FUNCTION Power Input Voltage. Ground. Chip Enable Pin with four options. A: active high with internal 8 MΩ pull down B: active high with external pull down C: active low with internal 2 MΩ pull up D: active low with external pull up Reference Noise Bypass. FB pin for adjustable version. Output Voltage. Block Diagram BL9193 XX XA BL9193 XX XC BL9193 XX XB PPMIC BU BL9193 Rev 1.4 2/2009 BL9193 XX XD www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2009 Belling All Rights Reserved 3 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Electrical Characteristics (Note 5) (VIN=3.6V, EN=VIN, CIN=COUT=1µF, CBP=22nF, TA=25℃, unless otherwise noted.) Parameter Symbol Conditions MIN TYP Input Voltage VIN 2 Output Voltage Accuracy -1 VIN=3.6V, ∆VOUT (Note 6) IOUT=1mA -2 Current Limit ILIM 400 430 RLOAD=1Ω Quiescent Current IQ VEN>1.2V, IOUT=0mA 90 IOUT=200mA, 130 VOUT=2.8V Dropout Voltage VDROP IOUT=300mA, 210 VOUT=2.8V VIN=3.6V to 5.5V (Note 7) ∆VLINE 0.05 Line Regulation IOUT=1mA (Note 8) ∆VLOAD 1mA<IOUT<300mA Load Regulation (Note 9) Output Voltage IOUT=1mA ±60 TCVOUT Temperature Coefficient Standby Current ISTBY VEN=GND,Shutdown 0.01 EN Input Bias Current IIBSD VEN=GND or VIN 0 VIN=3V to 5.5V, EN Logic Low VIL Shutdown Input VIN=3V to 5.5V, Threshold Logic High VIH 1.2 Start up 10Hz to100KHz, Output Noise eNO 100 IOUT=200mA Voltage COUT=1uF Power f=217Hz -80 Cout=1uF, Supply PSRR f=1KHz -78 Iout=100mA Rejection f=10KHz -65 Ratio Thermal Shutdown Shutdown,Temp TSD 165 Temperature increasing Thermal Shutdown TSDHY 30 Hysteresis MAX 6 +1 +2 unit V % mA µA 130 180 mV 300 0.17 %/V 2 %/A ppm/℃ 1 100 µA nA 0.4 V V µVRMS dB ℃ ℃ 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. △IOUT=0.299A, VOUT(normal)=2.8V. ∆VOUT Note 9:The temperature coefficient is calculated by TC VOUT = ∆T × VOUT PPMIC BU BL9193 Rev 1.4 2/2009 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2009 Belling All Rights Reserved 4 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Typical Performance Characteristics Output Voltage vs. Temperature Quiescent Current vs. Temperature 140 3.0 130 VIN=3.6V Output Voltage(V) Quiescent Current(uA) CIN=COUT=1uF 2.9 2.8 2.7 VIN=3.6V CIN=COUT=1uF 120 110 100 90 80 2.6 70 2.5 -50 -25 0 25 50 75 100 60 -50 125 -25 0 25 Dropout Voltage vs. Load Current 100 125 PSRR CIN=COUT=1uF 250 -10 -20 VIN=3.6V CBP=22nF CIN=1uF,COUT=1uF -30 200 PSRR(dB) Dropout Voltage(mV) 75 0 300 150 100 -40 -50 -60 TJ=85°C TJ=25°C TJ=-40°C 50 0 50 Temperature(°C) Temperaute(°C) 0 50 100 150 200 250 -70 IOUT=100mA IOUT=200mA -80 300 -90 10 100 1000 10000 100000 1000000 Frequency(Hz) Load Current(mA) EN Pin Shutdown Threshold vs. Temperature 1.05 VIN=3.6V EN Pin Shutdown Threshold(V) 1.00 CIN=COUT=1uF 0.95 0.90 0.85 0.80 0.75 -50 -25 PPMIC BU BL9193 Rev 1.4 2/2009 0 25 50 Temperature(°C) 75 100 125 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2009 Belling All Rights Reserved 5 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator PPMIC BU BL9193 Rev 1.4 2/2009 www.belling.com.cn Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited ©2009 Belling All Rights Reserved 6 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Applications Information Like any low-dropout regulator, the external capacitors used with the BL9193 must be carefully selected for regulator stability and performance. Using a capacitor whose value is > 1µF on the BL9193 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 BL9193 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 BL9193 output ensur-es stability. The BL9193 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 BL9193 and returned to a clean analog ground. Bypass Capacitor and Low Noise Connecting a 22nF between the BP pin and GND pin significantly reduces noise on the regulator output, it is critical that the capacitor connection between the BP pin and GND pin be direct and PCB traces should be as short as possible. There is a PPMIC BU BL9193 Rev 1.4 2/2009 relationship between the bypass capacitor value and the LDO regulator turn on time. DC leakage on this pin can affect the LDO regulator output noise and voltage regulation performance. Enable Function The BL9193 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 shutdown mode when the voltage on the EN pin falls below 0.4 volts. For to protect the system, the BL9193 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 BL9193. 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 = (VIN−VOUT) ×IOUT + VIN×IQ The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between junction to ambient. The maximum power dissipation can be calculated by following formula： www.belling.com.cn Belling Proprietary Information.Unauthorized Photocopy and Dupication Prohibited ©2009 Belling All Rights Reserved 7 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator TJ=TA+PD×θJA=40°C+0.15W×250°C/W =40°C+37.5°C=77.5°C<TJ(MAX) =125°C 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 BL9193, 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: For this operating condition, TJ is lower than the absolute maximum operating junction temperature,125°C, so it is safe to use the BL9193 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. In addition, the ground connection for the bypass capacitor should connect directly to the GND pin of the device. PD(MAX) = (125°C−25°C)/333 = 300mW (SC-70-5) 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 BL9193 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 Vo=2.8V version of the BL9193 can be calculated as: PD = (3.3V−2.8V) ×300mA+3.6V×100uA =150mW And the junction temperature, TJ, can be calculated as follows: PPMIC BU BL9193 Rev 1.4 2/2009 www.belling.com.cn Belling Proprietary Information.Unauthorized Photocopy and Dupication Prohibited ©2009 Belling All Rights Reserved 8 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator BL9193-2.8V Layout Circuit VIN(3.6V) VIN C4 1uF 1 C1 1uF 2 VIN VOUT 5 VOUT(2.8V) C2 1uF GND BL9193-2.8 1 2 3 1VIN 3 EN 2 4 C3 22nF 3 JP R1 TOP Layer Layout PPMIC BU BL9193 Rev 1.4 2/2009 BP BOTTOM Layer Layout www.belling.com.cn Belling Proprietary Information.Unauthorized Photocopy and Dupication Prohibited ©2009 Belling All Rights Reserved 9 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Package Description Symbol A A1 B b C D e H L Dimensions In Millimeters Min 0.800 0.000 1.150 0.150 1.800 1.800 Max 1.100 0.100 1.350 0.400 2.450 2.250 Dimensions In Inches Min 0.031 0.000 0.045 0.006 0.071 0.071 0.650 Max 0.044 0.004 0.054 0.016 0.096 0.089 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 BL9193 Rev 1.4 2/2009 www.belling.com.cn Belling Proprietary Information.Unauthorized Photocopy and Dupication Prohibited ©2009 Belling All Rights Reserved 10 BL9193 300mA UltraUltra-low Noise, UltraUltra-Fast CMOS LDO Regulator Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A A1 B b C D e H 0.889 0.000 1.397 0.356 2.591 2.692 0.838 0.080 1.295 0.152 1.803 0.559 2.997 3.099 1.041 0.254 0.035 0.000 0.055 0.014 0.102 0.106 0.033 0.003 0.051 0.006 0.071 0.022 0.118 0.122 0.041 0.010 L 0.300 0.610 0.012 0.024 SOT-23-5 Surface Mount Package PPMIC BU BL9193 Rev 1.4 2/2009 www.belling.com.cn Belling Proprietary Information.Unauthorized Photocopy and Dupication Prohibited ©2009 Belling All Rights Reserved 11