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| RT9162 300mA Low Dropout Positive Voltage Regulator General Description The RT9162 is a positive low dropout regulator designed for applications requiring low dropout performance at full rated current. The device is available in fixed output voltages of 3.3V and 3.5V. The RT9162 provides excellent regulation over line, load, and temperature variations. The other features include low dropout performance at a maximum of 1.3V at 300mA, fast transient response, internal current limiting, and thermal shutdown protection of the output devices. The RT9162 is a three-terminal regulators compatible with industrial 78XX series and available in surface mount SOT-89 packages. Features Low Dropout, Maximum 1.3V at 300mA Fast Transient Response 2% Total Output Regulation 0.4% Line Regulation 0.4% Load Regulation SOT-89 and TO-92 Packages Applications 5V to 3.3V Linear Regulator Low Voltage Microcontroller, DSF, ... etc. Power Supply Linear Regulator for LAN Card and CD-ROM Pin Configurations Part Number RT9162-33CZL Pin Configurations Ordering Information RT9162Package type ZL : TO-92 L type ZT : TO-92 T type X : SOT-89 Operating temperature range C: Commercial standard Output voltage 33 : 3.3V 35 : 3.5V RT9162-35CZL (Plastic TO-92) 123 1. VIN 2. GND 3. VOUT RT9162-33CZT RT9162-35CZT (Plastic TO-92) 123 1. GND 2. VIN 3. VOUT Marking Infromation Part Number RT9162-33CZT RT9162-33CZL RT9162-33CX RT9162-35CZT RT9162-35CX RT9162-35CX Marking RTA4 RTA2 A0 RTA5 RTA3 A1 RT9162-33CX RT9162-35CX (Plastic SOT-89) TOP VIEW 1 2 3 1. VOUT 2. GND 3. VIN Typical Application Circuit RT9162-33/35 VOUT VIN GND VIN VOUT + C2 10F + C1 10F DS9162-07 June 2000 www.richtek-ic.com.tw 1 RT9162 Pin Description Pin Name VOUT GND VIN Pin Function Output Pin Power Ground Pin Positive Power Input Pin Function Block Diagram VIN Buffer Amplifier Error Amplifier Q2 Thermal Shutdown Current Limiting Sensor Q1 R4 R3 VOUT R1 R2 - VREF www.richtek-ic.com.tw + DS9162-07 June 2000 2 RT9162 Absolute Maximum Ratings Input Voltage VIN Power Dissipation TO-92 SOT-89 Operating Junction Temperature Range Storage Temperature Range 0.6W 0.5W -40C to 125C -50C to 150C 15V Electrical Characteristics (VIN=5.0V, TA=25C, unless otherwise specified ) Parameter Output Voltage (1) (1) (1) (2) Symbol RT9162-33 RT9162-35 Test Conditions Min 3.235 3.430 ---400 ----- Typ 3.300 3.500 0.1 0.2 1.2 -4.5 0.005 0.5 0.003 Max 3.365 3.570 0.4 0.4 1.3 -8 ---- Units V % % V mA mA %/C % %/VOUT Line Regulation Dropout Voltage Current Limit VIN = 5V-15V IL = 0 - 300mA VOUT = 1% ------ Load Regulation Quiescent Current Temperature Coefficient Temperature Stability RMS Output Noise Notes: (1) Low duty cycle pulse testing with Kelvin connections required. (3) (2) Dropout voltage is defined as the input to output differential at which the output voltage drops 1% below the value measured with a 2V differential. (3) Bandwidth of 10 Hz to 10 kHz. DS9162-07 June 2000 www.richtek-ic.com.tw 3 RT9162 Package Information D D1 C A HE E A1 e 8 (x2) e A b b1 b Symbols A A1 b b1 C D D1 HE E e Dimensions In Millimeters Min 1.40 0.90 0.36 0.41 0.38 4.20 1.40 -2.40 1.45 Typ 1.50 1.00 0.42 0.42 0.40 4.50 1.60 -2.50 1.50 Max 1.60 1.10 0.48 0.53 0.43 4.60 1.75 4.25 2.60 1.55 Min 0.055 0.035 0.014 0.016 0.014 0.173 0.055 -0.094 0.057 Dimensions In Inches Typ 0.059 0.039 0.016 0.018 0.015 0.177 0.062 -0.098 0.059 Max 0.063 0.043 0.018 0.020 0.017 0.181 0.069 0.167 0.102 0.061 3-Lead SOT-89 Surface Mount www.richtek-ic.com.tw DS9162-07 June 2000 4 RT9162 D 0.060 (Millimeter) E d E1 A e e b C D1 A1 Symbols A A1 C D D1 E E1 b e Dimensions In Millimeters Min 3.48 --4.19 -3.99 14.00 ---Typ 3.56 1.30 0.38 4.45 4.29 4.24 -0.38 1.27 5 Max 3.61 --4.70 -4.50 ----Min 0.137 --0.165 -0.157 0.551 ---- Dimensions In Inches Typ 0.140 0.051 0.015 0.175 0.169 0.167 -0.015 0.050 5 Max 0.142 --0.185 -0.177 ----- 3-Lead TO-92 Package DS9162-07 June 2000 www.richtek-ic.com.tw 5 RT9162 RichTek Technology Corp. Headquarters 6F, No. 35, Hsintai Road, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5510047 Fax: (8863)5537749 RichTek Technology Corp. Taipei Office (Marketing) 4F-1, No. 127, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek-ic.com.tw www.richtek-ic.com.tw DS9162-07 June 2000 6 |
Price & Availability of RT9162
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