SE8117B SEAWARD | Alldatasheet
Document overview
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Technical content
Features
¾ Low Dropout Performance. ¾ Low Quiescent Current ：3mA（Typ.） ¾ Guaranteed 1A Output Current. ¾ Wide Input Supply Voltage Range. ¾ Stable operation without Cin and Cout. ¾ Over-temperature and Over-current Protection. ¾ Fixed or Adjustable Output Voltage. ¾ Rugged 2KV ESD withstand capability. ¾ Available in SOT-223 and TO252 Packages. ¾ RoHS Compliant and 100% Lead (Pb)-Free
Description
The SE8117B series of high performance low dropout voltage regulators are designed for applications that require efficient conversion and fast transient response. In addition, SE8117B is designed to be stable under conditions where Cin and Cout are not present. However, it is recommended to include Cin and Cout in the system design as this will increase the PSRR rating. SE8117B is characterized under Junction Temperature from -40°C to +130°C. Pin Configuration
Ordering Information
Fixed output voltages; XX denotes voltage options SE8117BTALF SE8117TALF SOT-223 TO-252 (Lead-free) Adjustable output voltage. Absolute Maximum Rating Symbol Parameter Maximum Units VIN Input Supply Voltage 9 V θJA Thermal Resistance Junction to Ambient (SOT-223) 60 °C/W TJ Operating Junction Temper ature Range -40 to 130 °C TSTG Storage Temperature Range -40 to 150 °C TLEAD Lead Temperature (Soldering 10 Sec) 260 °C Application ¾ Active SCSI Terminators. ¾ High Efficiency Linear Regulators. ¾ 5V to 3.3V Linear Regulators ¾ Motherboard Clock Supplies.
Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 2 Electrical Characteristic VIN,MAX ≤ 8V, VIN,MIN – VOUT = 1.5V, IOUT = 10mA, CIN = 10µF, COUT = 22µF, TA = 25°C, unless otherwise specified. Symbol Parameter Test Condition Min Typ Max Units VO Output Voltage (1) SE8117BT15 SE8117BT18 SE8117BT25 SE8117BT33 SE8117BT50 1.470 1.764 2.450 3.234 4.900 1.5 1.8 2.5 3.3 5.0 1.530 1.836 2.550 3.366 5.100 V VREF Reference Voltage (1) (Adj. Voltage Version) (VIN - VOUT) = 1.5V VSR Line Regulation (1) VOUT + 1.5V < VIN < 8V IOUT = 10mA -- 0.3 -- % VLR Load Regulation (1) (VIN - VOUT) = 1.5V 10mA ≤ IOUT ≤ 1A -- 0.5 -- % IQ Quiescent Current (2) Fixed Output Version -- 3 -- mA IADJ Adjust Pin Current -- 65 -- μA ∆IADJ Adjust Pin Current Change VOUT + 1.5V < VIN < 8V 10mA ≤ IOUT ≤ 1A -- 14 -- μA VD Dropout Voltage (3) I OUT = 1A -- 1.3 -- V IO Minimum Load Current -- 0.4 -- mA ICL Current Limit -- 1.8 -- A TC Temperature Coefficient -- 0.07 -- %/°C OTP Thermal Protection -- 175 -- °C VN RMS Output Noise T A = 25°C, 10Hz ≤ f ≤ 10kHz -- 0.003 -- %V O RA Ripple Rejection Ratio f = 120Hz, COUT = 22μF (Tantalum), (VIN - VOUT) = 3V, IOUT = 100mA -- 57 -- dB Notes: 1. Low duty cycle pulse testing with which T J remains unchanged. 2. The I Q of SE8117BT15 is 1.2mA(Typ.) 3. The dropout voltage is the input/output differential at which the circuit ceases to regulate against further reduction in input voltage. It is measured when t he output voltage has dropped 98% from the nominal value obtained at VIN = VOUT +1.5V.
Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 3 Typical Application SE8117BTA
24.9 Ohm
124 Ohm
VOUT = 1.5VVIN >= 3.0V Adjustable Voltage Regulator SE8117BT33 COUT 22uF CIN 10uF IQ VOUT = 3.3VVIN >= 4.8V Fixed Voltage Regulator COUT 22uF )1( RIR RVV ADJREFOUT ++=
Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 4 PSRR 0.001 0.01 0.1 1 10 Frequency (kHz) PSRR (dB) Load Regulation 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 0 200 400 600 800 1000 Iload (mA) Vout (V ) SE8117B_3.3V SE8117B_1.8V Line Regulation 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3456789 1 0 1 1 1 2 Vin (V) Vout (V) SE8117B_3.3 SE8117B_1.8 Typical Performance Characteristics Line Transients CIN = 0.1μF, COUT = 1μF VIN = 4.5V – 5.5 V Load Transients Dropout Voltage vs. Output Current 1.03 1.05 1.07 1.09 1.11 1.13 1.15 1.17 0 200 400 600 800 1000 Output Current(mA) Dropout Voltage (V) Reference Voltage vs Junction Temperature 1220 1225 1230 1235 1240 1245 1250 -25 0 25 50 75 100 125 150 Junction Temperature (C) Reference Voltage (mV) IOUT = 100mA
Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 5 Typical Performance Characteristics Short Transient Response
Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 6 Outline Drawing for SOT-223 Outline Drawing for TO252
Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 7 Customer Support Seaward Electronics Incorporated – China Section B, 2nd Floor, ShangDi Scientific Office Complex, #22 XinXi Road Haidian District, Beijing 100085, China Tel: 86-10-8289-5700/01/05 Fax: 86-10-8289-5706 Seaward Electronics Corporation – Taiwan 2F, #181, Sec. 3, Minquan East Rd, Taipei, Taiwan R.O.C Tel: 886-2-2712-0307 Fax: 886-2-2712-0191 Seaward Electronics Incorporated – North America 1512 Centre Pointe Dr. Milpitas, CA95035, USA Tel: 1-408-821-6600 Last Updated - 7/28/2008