Document
EC50117 1A Positive Voltage Regulators
Introduction
The EC50117 series of high performance low dropout voltage regulators are designed for applications that require efficient conversion and fast transient response.
Features
z z z z z z z Low Dropout Performance Guaranteed 1A Output Current Wide Input Supply Voltage Range Over-temperature and Over-current Protection Fixed or Adjustable Output Voltage Rugged 2KV ESD withstand capability Available in SOT-223 & TO-252 & SOT-89 Packages
Applications
z z z z Active SCSI Terminators High Efficiency Linear Regulators 5V to 3.3V Linear Regulators Motherboard Clock Supplies
Pin Configuration (TOP-VIEW)
Package: SOT-223 Package: SOT-223 (B1)
Package: TO-252
Package: SOT-89
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 10
2007/09/17
EC50117 1A Positive Voltage Regulators
Ordering Information
EC50117 X X X
F: Lead-Free , G: Green Mode Package Type: B= SOT-223 B1= SOT-223 A= TO-252 H= SOT-89 Output Voltage: A = VOUT= 1.5V B = VOUT= 1.8V C = VOUT= 2.5V E = VOUT= 2.7V H = VOUT= 3.0V K = VOUT= 3.3V ADJ=VOUT= Adjustable
Part Number EC50117KBF EC50117KB1F EC50117KBG EC50117KB1G EC50117KAF
Marking ID 50117K-F 50117K1-F 50117K-G 50117K1-G 50117 K-F ##### 50117
Package SOT-223 SOT-223 SOT-223 SOT-223 TO-252
VOUT Voltage output voltages; B Type ,voltage options (3.3V). Lead Free output voltages; B1 Type, voltage options (3.3V). Lead Free output voltages; B Type, voltage options (3.3V). Green Package output voltages; B1 Type, voltage options (3.3V). Green Package output voltages; A Type, voltage options (3.3V). Lead Free
output voltages; A Type, voltage options (3.3V). Green Package TO-252
EC50117KAG
K-G #####
EC50117KHF EC50117EBG
50117K-F 50117E-G 50117 C-G #####
SOT-89 SOT-223
output voltages; H Type, voltage options (3.3V). Lead Free output voltages; B Type, voltage options (2.7V). Green Package output voltages; A Type, voltage options (2.5V). Green Package
EC50117CAG
TO-252
EC50117CBG EC50117CB1G EC50117CHF EC50117CHG
50117C-G 50117C1G 117C-F 117C-G 50117 B-G #####
SOT-223 SOT-223 SOT-89 SOT-89
output voltages; B Type, voltage options (2.5V). Green Package output voltages; B1 Type, voltage options (2.5V). Green Package output voltages; H Type, voltage options (2.5V). Lead Free output voltages; H Type, voltage options (2.5V). Green Package output voltages; A Type, voltage options (1.8V). Green Package
EC50117BAG
TO-252
EC50117BBG EC50117BB1G EC50117ABG
50117B-G 50117B1G 50117A-G
SOT-223 SOT-223 SOT-223
output voltages; B Type, voltage options (1.8V). Green Package output voltages; B1 Type, voltage options (1.8V). Green Package output voltages; B Type, voltage options (1.5V). Green Package
E-CMOS Corp. (www.ecmos.com.tw)
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2007/09/17
EC50117 1A Positive Voltage Regulators
Ordering Information(Continued)
Part Number Marking ID 50117 EC50117ADJAG ADJ-G ##### EC50117ADJBF EC50117ADJBG 50117ADJ-F 50117ADJ-G SOT-223 SOT-223 output voltages; B Type ,voltage options (ADJ). Lead Free output voltages; B Type ,voltage options (ADJ). Green Package TO-252 Package VOUT Voltage output voltages; A Type ,voltage options (ADJ). Green Package
Marking Information
SOT-89 SOT-223 TO-252
Package
Part Number
EC50117XHF
Marking
50117X-F 50117X-G 50117ADJ-F 50117ADJ-G 50117X-F 50117X1-F 50117X-G 50117X1-G 50117ADJ-F 50117ADJ1-F 50117ADJ-G 50117ADJ1-G 50117 X-F ##### 50117
Marking Information
1. X is the output voltage of production. A:1.5V B:1.8V C:2.5V E:2.7V H:3.0V K:3.3V ADJ: Adjustable 2. F is for Lead-free package. G is for Green package 1 is for SOT223 (B1) package. 3. #####: Lot Number of production.
SOT-89
EC50117XHG EC50117ADJHF EC50117ADJHG EC50117XBF EC50117XB1F EC50117XBG
SOT-223
EC50117XB1G EC50117ADJBF EC50117ADJB1F EC50117ADJBG EC50117ADJB1G EC50117XAF
EC50117XAG TO-252 EC50117ADJAF
X-G ##### 50117 ADJ-F ##### 50117
EC50117ADJAG
ADJ-G #####
E-CMOS Corp. (www.ecmos.com.tw)
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2007/09/17
EC50117 1A Positive Voltage Regulators
Typical Application
Application Hints Like any linear voltage regulator, EC50117 requires external capacitors to ensure stability. The external capacitors must be carefully selected to ensure performance. Input Capacitor An input capacitor of at least 10µF is required. Ceramic or Tantalum can be used. The value can be increase without upper limit. Output Capacitor An output capacitor is required for stability. It must be placed no more than 1 cm away from the VOUT pin, and connected directly between VOUT and GND pins. The minimum value is 22µF but may be increase without limit. Thermal Considerations It is important that the thermal limit of the package is not exceeded. The EC50117 has built-in thermal protection. When the thermal limit is exceeded, the IC will enter protection, and VOUT will be pulled to ground. The power dissipation for a given application can be calculated as following: PD = IOUT * [VIN – VOUT]
E-CMOS Corp. (www.ecmos.com.tw)
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2007/09/17
EC50117 1A Positive Volt.