BL9118 800mA Adjustable Voltage High Speed LDO Regulators BL9118 Series General Description Features The BL9118 series are highly accurate, low noise, LDO Voltage Regulators that are capable of providing an output current that is in excess of 800mA with a maximum dropout voltage of 1.0V at 800mA(BL9118-1.8V).This series contains three fixed output voltages of 1.2V,1.8 V and 2.5V that have no minimum load requirement to maintain regulation. On chip trimming adjusts the reference/output voltage to within ±2% accuracy. Internal protection features consist of output current limiting, safe operating area compensation, and thermal shutdown. The BL9118series can operate with up to 15 V input. Devices are available in SOT223. Output Current in Excess of 800mA Dropout Voltage:115mV@ IOUT =100mA (BL9118-1.8V) Operating Voltage Range: 2.5V~15V Highly Accuracy: ±2% Adjustable Output Voltage Option Standby Current: 52uA(TYP.) High Ripple Rejection: 70dB@1KHz(BL9118-1.8V) Line Regulation: 2mV(TYP.) Temperature Stability≤0.5% Thermal Shutdown Protection:160℃ Packages:SOT223 Typical Application Selection Guide BL9118-VV X X Package: X: SOT-223-3 Consumer and Industrial Equipment Point of Regulation Switching Power Supply Post Regulation Hard Drive Controllers Battery Chargers Typical Application Circuit Output Voltage Accuracy A: ±1% C: ±2% Output Voltage 12:1.2V 18:1.8V 25:2.5V 50:5.0V Page1 www.belling.com.cn V1.2 BL9118 Pin Configuration SOT223 Pin Assignment BL9118 Pin Number Pin Name Functions 1 GND Ground 2 VOUT Output 3 VIN Power Input Pin Name Functions 1 GND Ground 3 VOUT Output 2 VIN Power Input SOT223 BL9118E Pin Number SOT223 Absolute Maximum Ratings Parameter Symbol Ratings Units Input Voltage VIN 18 V Output Current IOUT 1.1 A Output Voltage VOUT Vss-0.3~VIN +0.3 V PD 750 mW Operating Temperature Range TOPR -40~+125 ℃ Storage Temperature Range TSTG -40~+150 ℃ Power Dissipation SOT223 Lead Temperature Page2 260℃,4sec www.belling.com.cn V1.2 BL9118 Block Diagram Electrical Characteristics BL9118-1.2V (VIN= VOUT+1.3V,CIN=CL=10uF,Ta=25OC, unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Units Output Voltage VOUT(E) (Note 2) IOUT=10mA, VIN= VOUT+1.3V X 0.98 VOUT (T) (Note 1) X 1.02 V Maximum Output Current IOUTMAX VIN= VOUT+1.3V 800 Load Regulation ∆VOUT VIN= VOUT+1.3V , 1mA≤IOUT≤800mA 3 VDIF1 IOUT =100mA 195 mV mA 10 mV Dropout Voltage (Note 3) VDIF2 IOUT =400mA 665 mV VDIF3 IOUT =800mA 1250 mV Quiescent Current Iss VIN= VOUT+1.3V 53 uA Line Regulation ∆VOUT IOUT =0mA VOUT+1.3V ≤VIN≤18V 2 Ripple Rejection Rate Page3 PSRR VIN =4.2V +1Vp-pAC IOUT=100mA,1kHZ 70 IOUT=200mA,1kHZ 68 IOUT=500mA,1kHZ 61 www.belling.com.cn 10 mV dB V1.2 BL9118 BL9118-1.8V (VIN= VOUT+1.2V,CIN=CL=10uF,Ta=25OC, unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Units Output Voltage VOUT(E) (Note 2) IOUT=10mA, VIN= VOUT+1.2V X 0.98 VOUT (T) (Note 1) X 1.02 V Maximum Output Current IOUTMAX VIN= VOUT+1.2V 800 Load Regulation ∆VOUT VIN= VOUT+1.2V , 1mA≤IOUT≤800mA 5 VDIF1 IOUT =100mA 115 mV mA 10 mV Dropout Voltage (Note 3) VDIF2 IOUT =400mA 450 mV VDIF3 IOUT =800mA 940 mV Quiescent Current Iss VIN= VOUT+1.2V 52 uA Line Regulation ∆VOUT IOUT =0mA VOUT+1.2V ≤VIN≤18V 2 Ripple Rejection Rate PSRR VIN =4.8V +1Vp-pAC IOUT=100mA,1kHZ 70 IOUT=200mA,1kHZ 68 IOUT=500mA,1kHZ 61 10 mV dB BL9118-2.5V (VIN= VOUT+1.2V,CIN=CL=10uF,Ta=25OC, unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Units Output Voltage VOUT(E) (Note 2) IOUT=10mA, VIN= VOUT+1.2V X 0.98 VOUT (T) (Note 1) X 1.02 V Maximum Output Current IOUTMAX VIN= VOUT+1.2V 1000 Load Regulation ∆VOUT VIN= VOUT+1.2V , 1mA≤IOUT≤1000mA 5 VDIF1 IOUT =100mA 90 mV mA 10 mV Dropout Voltage (Note 3) VDIF2 IOUT =500mA 450 mV VDIF3 IOUT =1000mA 990 mV Quiescent Current Iss VIN= VOUT+1.2V 53 uA Line Regulation ∆VOUT IOUT =0mA VOUT+1.2V ≤VIN≤18V 2 Ripple Rejection Rate Page4 PSRR VIN =5.5V +1Vp-pAC IOUT=100mA,1kHZ 70 IOUT=200mA,1kHZ 68 IOUT=500mA,1kHZ 61 www.belling.com.cn 10 mV dB V1.2 BL9118 BL9118-3.3V (VIN= VOUT+1.2V,CIN=CL=10uF,Ta=25OC, unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Units Output Voltage VOUT(E) (Note 2) IOUT=10mA, VIN= VOUT+1.2V X 0.98 VOUT (T) (Note 1) X 1.02 V Maximum Output Current IOUTMAX VIN= VOUT+1.2V 800 Load Regulation ∆VOUT VIN= VOUT+1.2V , 1mA≤IOUT≤800mA 7 VDIF1 IOUT =100mA 80 mV mA 10 mV Dropout Voltage (Note 3) VDIF2 IOUT =500mA 400 mV VDIF3 IOUT =800mA 680 mV Quiescent Current Iss VIN= VOUT+1.2V 53 uA Line Regulation ∆VOUT IOUT =0mA VOUT+1.2V ≤VIN≤18V 2 Thermal Shutdown Protection Tsd IOUT=10mA, VIN= VOUT+1.2V 160 ℃ Over Current Protection Ilimit VIN=5.0V 1.1 A 10 mV BL9118-5.0V (VIN= VOUT+1.2V,CIN=CL=10uF,Ta=25OC, unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Units Output Voltage VOUT(E) (Note 2) IOUT=10mA, VIN= VOUT+1.2V X 0.98 VOUT (T) (Note 1) X 1.02 V Maximum Output Current IOUTMAX VIN= VOUT+1.2V 800 Load Regulation ∆VOUT VIN= VOUT+1.2V , 1mA≤IOUT≤800mA 8 VDIF1 IOUT =100mA 60 mV mA 10 mV Dropout Voltage (Note 3) VDIF2 IOUT =500mA 300 mV VDIF3 IOUT =800mA 500 mV Quiescent Current Iss VIN= VOUT+1.2V 53 uA Line Regulation ∆VOUT IOUT =0mA VOUT+1.2V ≤VIN≤18V 2 Thermal Shutdown Protection Tsd IOUT=10mA, VIN= VOUT+1.2V 160 ℃ Over Current Protection Ilimit VIN=6.5V 1.1 A Page5 www.belling.com.cn 10 mV V1.2 BL9118 Note : 1. VOUT (T) :Specified Output Voltage 2.VOUT (E) :Effective Output Voltage ( ie. The output voltage when “VOUT (T)+1.2V”is provided at the Vin pin while maintaining a certain Iout value.) 3.VDIF:VIN1 –VOUT (E)’ VIN1 :The input voltage when VOUT(E)’ appears as input voltage is gradually decreased. VOUT (E)’=A voltage equal to 98% of the output voltage whenever an amply stabilized Iout and {VOUT (T)+1.2V} is input. Type Characteristics (1) Output Voltage VS. Output Current BL9118-1.2V(VIN=VOUT+1.3V) BL9118-1.8V(VIN=VOUT+1.2V) Output Voltage VS.Output Current 1.23 1.85 1.22 1.83 O utput V olta ge (V ) O u tp u t V o lta g e (V ) Output Voltage VS.Output Current 1.21 1.20 1.19 1.18 1.17 1.16 1.81 1.79 1.77 1.75 1.73 1.71 0 200 400 600 800 1000 0 200 400 Output Current(mA) BL9118-2.5V(VIN=VOUT+1.2V) O u tp u t V o l ta g e (V ) O u tp u t V o l ta g e (V ) 200 300 400 500 600 700 3.33 3.32 3.31 3.30 3.29 3.28 3.27 3.26 800 0 100 200 300 400 500 600 700 800 Output Current(mA) Output Current(mA) Page6 1000 Output Voltage VS.Output Current 2.53 2.52 2.51 2.50 2.49 2.48 2.47 2.46 100 800 BL9118-3.3V(VIN=VOUT+1.2V) Output Voltage VS.Output Current 0 600 Output Current(mA) www.belling.com.cn V1.2 BL9118 (2) Output Voltage VS. Temperature BL9118-1.2V(VIN=VOUT+1.3V , IOUT=10mA) BL9118-1.8V(VIN=VOUT+1.2V , IOUT=10mA) Output Voltage VS. Temperature 1.24 1.85 1.22 1.83 O u tp u t V o ltag e(V) O u tp u t V o lta g e (V ) Output Voltage VS. Temperature 1.20 1.18 1.16 1.14 1.12 1.81 1.79 1.77 1.75 1.73 0 30 60 90 120 150 0 30 Temperature(℃ ) 60 90 120 150 Temperature( ℃ ) BL9118-2.5V(VIN=VOUT+1.2V , IOUT=10mA) BL9118-3.3V(VIN=VOUT+1.2V , IOUT=10mA) Output Voltage VS. Temperature 2.54 3.34 2.52 3.32 O u tp u t V o l t a g e (V ) O u tp u t V o l ta g e (V ) Output Voltage VS. Temperature 3.30 2.50 3.28 2.48 3.26 2.46 2.44 3.24 2.42 3.22 0 30 60 90 120 150 0 30 60 Temperature(℃ ) 150 BL9118-1.8V Dropout Voltage VS.Output Current Dropout Voltage VS.Output Current 1000 D ropout Volta ge (m V) 1400 D ro p o u t V o l ta g e (m V ) 120 Temperature(℃ ) (3)Droput Voltage VS. Output Current(Ta = 25 °C) BL9118-1.2V 1200 1000 800 600 400 200 0 800 600 400 200 0 0 100 200 300 400 500 600 700 800 Output Current(mA) Page7 90 0 100 200 300 400 500 600 700 800 Output Current(mA) www.belling.com.cn V1.2 BL9118 BL9118-2.5V BL9118-3.3V Dropout Voltage VS.Output Current D r o p o u t V o l ta g e (m V ) D r o p o u t V o l ta g e (m V ) Dropout Voltage VS.Output Current 1000 800 600 400 200 0 0 100 200 300 400 500 600 700 700 600 500 400 300 200 100 0 800 0 100 200 Output Current(mA) 400 500 600 700 800 Output Current(mA) (4)Ripple Rejection vs. Frequency(Io=100mA) BL9118-1.2V BL9118-1.8V Ripple Rejection VS.Frequency Ripple Rejection VS.Frequency 90 R ipple R e je c tion(dB ) 90 R ipple R e je c tion(dB ) 300 80 70 60 50 40 30 80 70 60 50 40 30 10 100 1000 10000 Frequency(Hz) 10 100 1000 10000 Frequency(Hz) BL9118-2.5V Ripple Rejection VS.Frequency R ipple R e je c tion(dB ) 90 80 70 60 50 40 30 10 100 1000 10000 Frequency(Hz) Page8 www.belling.com.cn V1.2 BL9118 (5)Output Voltage VS. Input Voltage(Ta = 25 °C) BL9118-1.2V BL9118-1.8V Output Voltage VS.Input Voltage Output Voltage VS.Input Voltage 1.89 1.86 1.21 Output Voltage(V) O u t p u t V o lta g e (V ) 1.22 1.20 1.19 1.18 1.17 1.16 1.83 1.80 1.77 1.74 1.15 2 4 6 8 10 12 14 16 1.71 18 2 4 6 8 Input Voltage(V) BL9118-2.5V 14 16 18 Output Voltage VS.Input Voltage 2.53 3.32 O u tp u t V o l ta g e (V ) O u tp u t V o l ta g e (V ) 2.52 2.51 2.50 2.49 2.48 2.47 2.46 2 4 6 8 10 12 14 16 3.31 3.30 3.29 3.28 3.27 3.26 2 18 4 6 8 (6)Quiescent Current VS. Iutput Voltage BL9118-1.2V Q u i e s c e n t C u r r e n t(u A ) 55 50 45 40 35 30 25 6 8 10 12 14 16 18 Quiescent Current VS. Input Voltage 60 4 12 BL9118-1.8V Quiescent Current VS. Input Voltage 2 10 Input Voltage(V) Input Voltage(V) Q u i e s c e n t C u rr e n t(u A ) 12 BL9118-3.3V Output Voltage VS.Input Voltage 14 16 63 58 53 48 43 38 33 28 18 Input Voltage(V) Page9 10 Input Voltage(V) 2 4 6 8 10 12 14 16 18 Input Voltage(V) www.belling.com.cn V1.2 BL9118 BL9118-2.5V BL9118-3.3V Quiescent Current VS. Input Voltage 65 60 55 50 45 40 35 30 2 4 6 8 10 12 14 16 18 Q u i e s c e n t C u r r e n t(u A ) Q u i e s c e n t C u r r e n t(u A ) Quiescent Current VS. Input Voltage Input Voltage(V) 70 65 60 55 50 45 40 35 2 4 6 8 10 12 14 16 18 Input Voltage(V) Applications Information 1. Input Bypass Capacitor An input capacitor is recommended.A 10uF tantalum on the input is a suitable input bypassing for almost all applications. 2. Output Capacitor The output capacitor is critical in maintaining regulator stability,and must meet the required conditions for both minimum amount of capacitance and ESR (Equivalent Series Resistance).The minimum output capacitance required by the BL9118 is 10µF,if a tantalum capacitor is used.Any increase of the output capacitance will merely improve the loop stability and transient response.The ESR of the output capacitor should be less than 0.5Ω . 3. Load Regulation The BL9118 regulates the voltage that appears between its output and ground pins,or between its output and adjust pins. In some cases, line resistances can introduce errors to the voltage across the load. To obtain the best load regulation, a few precautions are needed. Figure1, shows a typical application using a fixed output regulator.The Rt1 and Rt2 are the line resistances.It is obvious that the VLOAD is less than the VOUT by the sum of the voltage drops along the line resistances. In this case, the load regulation seen at the RLOAD would be degraded from the datasheet specification. To improve this , the load should be tied directly to the output terminal on the positive side and directly tied to the ground terminal on the negative side. FIGURE 1. Typical Application using Fixed Output Regulator Page10 www.belling.com.cn V1.2 BL9118 Application Circuit (1)Regulator with Reference (2)Adjusting Output of Fixed Voltage Regulators (3)Battery Backed−Up Power Supply (4)Low Dropout Negative Supply Page11 www.belling.com.cn V1.2 BL9118 Packaging Information ● SOT223 Page12 www.belling.com.cn V1.2