RT9165 150mA 3-Terminal Positive Regulator General Description Features The RT9165 is a positive low dropout regulator designed for applications requiring low dropout performance at full rated current. The device is available in fixed output voltage of 5.0V or 8.0V. The RT9165 provides excellent regulation over line, load, and temperature variations. z Low Dropout, Maximum 1.3V at 150mA z Fast Transient Response ±3% Total Output Regulation 0.5% Line Regulation 0.5% Load Regulation SOT-89 and TO-92 Packages RoHS Compliant and 100% Lead (Pb)-Free The other features include low dropout performance at a maximum of 1.3V at 150mA, fast transient response, internal current limiting, and thermal shutdown protection of the output devices. The RT9165 is a three-terminal regulator compatible with industrial LM78L05/L08 and available in surface mount SOT-89 package. Ordering Information z z z z z Applications z z 5V or 8V Output Linear Regulator Consumer Equipment Power Supply Pin Configurations RT9165- (TOP VIEW) Package Type Z : TO-92 X : SOT-89 Lead Plating System P : Pb Free G : Green (Halogen Free and Pb Free) 3 VIN 2 GND VOUT RT9165-xZ TO-92 Output Voltage Default : 5.0V 80 : 8.0V Note : Richtek products are : ` 1 2 3 RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. ` Suitable for use in SnPb or Pb-free soldering processes. Marking Information VOUT GND VIN (TAB) RT9165-xX SOT-89 For marking information, contact our sales representative directly or through a Richtek distributor located in your area. DS9165-18 April 2011 www.richtek.com 1 RT9165 Typical Application Circuit VIN RT9165 VOUT + CIN 10uF + VIN GND VOUT COUT 10uF Function Block Diagram VIN Buffer Amplifier + Error Amplifier - Q2 Thermal Shutdown Current Limiting Sensor Q1 R4 R3 VOUT R1 R2 Functional Pin Description Pin Name Pin Function VOUT Output Voltage GND Ground VIN Power Input www.richtek.com 2 DS9165-18 April 2011 RT9165 Absolute Maximum Ratings z z z z z Input Voltage ---------------------------------------------------------------------------------------------------------- 16V Power Dissipation, PD @ TA = 25° C TO-92 ------------------------------------------------------------------------------------------------------------------- 0.625W SOT-89 ----------------------------------------------------------------------------------------------------------------- 0.571W Package Thermal Resistance (Note 1) TO-92, θJA ------------------------------------------------------------------------------------------------------------- 160°C/W SOT-89, θJA ----------------------------------------------------------------------------------------------------------- 175°C/W Operating Junction Temperature Range ------------------------------------------------------------------------- −40°C to 125°C Storage Temperature Range --------------------------------------------------------------------------------------- −65°C to 150°C Electrical Characteristics (VIN = 7.0V, TA = 25° C, unless otherwise specified) Parameter Output Voltage (Note 2) Symbol RT9165 RT9165-80 Line Regulation Test Conditions (Note 2) Min Typ Max 4.900 5.000 5.100 7.840 8.000 8.160 Unit VOUT V IN = VOUT + 2V V ΔV LINE V IN = VOUT + 2V ~ 16V -- 0.1 0.5 % Load Regulation (Note 2) ΔV LOAD IL = 0~150mA -- 0.2 0.5 % Dropout Voltage (Note 3) VDROP ΔV OUT =1% -- 1.2 1.3 V 300 -- -- mA Current Limit ILIM Quiescent Current IQ -- 4.5 8 mA Temperature Coefficient TC -- 0.005 -- %/°C Temperature Stability TS -- 0.5 -- % -- 0.003 -- %/VOUT RMS Output Noise (Note 4) Note 1. θJA is measured in the natural convection at T A = 25°C on a low effective thermal conductivity test board of JEDEC 51-3 thermal measurement standard. Note 2. Low duty cycle pulse testing with Kelvin connections required. Note 3. The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV. Note 4. Bandwidth of 10Hz to 10kHz. DS9165-18 April 2011 www.richtek.com 3 RT9165 Typical Operating Characteristics Dropout Voltage (VIN-VOUT) PSRR 1.4 0 CIN = 1nF COUT = 10uF Electrolytic Capacitor VIN = 8V VOUT = 5V PSRR (dB) -20 -30 TA = 25°C TJ = 25°C 1.2 100mA Dropout Voltage (V) -10 10mA -40 -50 -60 1 TJ = 125°C 0.8 0.6 0.4 -70 0.2 -80 0 VOUT = 5V 10 100 1K 10K 100K 1M 10M 0 25 50 75 125°C 5.1 0.3 Output Voltage (V) Short Circuit Current (A) 150 5.2 25°C 0.2 0.1 VOUT = 5V 5 4.9 4.8 0 4.7 5 6 7 8 9 10 -50 Input Voltage (V) Output Voltage Deviation (mV) TA = 25°C -20 ≈ ≈ 100 10 -100 Time (100us/Div) www.richtek.com 4 25 50 75 100 125 Load Transient Response 0 -40 0 60 CIN = 10uF 40 COUT = 10uF Electrolytic VIN = 8V, VOUT = 5V 20 TA = 25°C 0 -20 -40 Load Current (mA) CIN = 10uF 40 COUT = 10uF Electrolytic VIN = 8V, VOUT = 5V 20 -25 Temperature (°C) Load Transient Response 60 Output Voltage Deviation (mV) 125 Temperature Stability Short Circuit Current 0.4 Load Current (mA) 100 I OUT(mA) Frequency (Hz) ≈ ≈ 50 1 -50 Time (100us/Div) DS9165-18 April 2011 Output Noise Line Transient Response 5.5 COUT = 10uF Electrolytic 4.5 VOUT = 5V, IOUT = 0.1A 1500 1000 3.5 VOUT+ 2.5 ≈ Output Voltage Deviation (mV) Load = 10mA CIN = 10uF Electrolytic TA = 25°C ≈ 20 0 Output Noise (uv) Input Voltage (V) RT9165 500 0 -500 -1000 -20 -1500 -40 Time (10us/Div) DS9165-18 April 2011 0 2 4 6 8 10 Time(ms) www.richtek.com 5 RT9165 Outline Dimension A D E L b e C D1 A1 Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 3.175 4.191 0.125 0.165 A1 1.143 1.372 0.045 0.054 b 0.406 0.533 0.016 0.021 C 0.406 0.533 0.016 0.021 D 4.445 5.207 0.175 0.205 D1 3.429 5.029 0.135 0.198 E 4.318 5.334 0.170 0.210 e 1.143 1.397 0.045 0.055 L 12.700 0.500 3-Lead TO-92 Plastic Package www.richtek.com 6 DS9165-18 April 2011 RT9165 D D1 A B C C1 e e H A b b1 b Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 1.397 1.600 0.055 0.063 b 0.356 0.483 0.014 0.019 B 2.388 2.591 0.094 0.102 b1 0.406 0.533 0.016 0.021 C 3.937 4.242 0.155 0.167 C1 0.787 1.194 0.031 0.047 D 4.394 4.597 0.173 0.181 D1 1.397 1.753 0.055 0.069 e 1.448 1.549 0.057 0.061 H 0.356 0.432 0.014 0.017 3-Lead SOT-89 Surface Mount Package Richtek Technology Corporation Richtek Technology Corporation Headquarter Taipei Office (Marketing) 5F, No. 20, Taiyuen Street, Chupei City 5F, No. 95, Minchiuan Road, Hsintien City Hsinchu, Taiwan, R.O.C. Taipei County, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Tel: (8862)86672399 Fax: (8862)86672377 Email: [email protected] Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be guaranteed by users when integrating Richtek products into any application. No legal responsibility for any said applications is assumed by Richtek. DS9165-18 April 2011 www.richtek.com 7