Electronic Components Datasheet Search |
|
CM2830A Datasheet(PDF) 8 Page - List of Unclassifed Manufacturers |
|
CM2830A Datasheet(HTML) 8 Page - List of Unclassifed Manufacturers |
8 / 15 page CM2830/CM2830A 300mA CMOS LDO 2002/01/28 Preliminary Rev. 2 Champion Microelectronic Corporation Page 7 ELECTRICAL CHARACTERISTICS TA = +25℃; unless otherwise noted CM2830/CM2830A Parameter Test Conditions Min. Typ. Max. Unit Input Voltage Note 1 7 V Output Voltage Accuracy Io = 1mA to 300mA -1.5 1.5 % Io=300mA, VOUT=VOUT-2.0%, VOUT>2.5V 300 mV Dropout Voltage Io=300mA, VOUT=VOUT-2.0%, VOUT<=2.5V 800 mV Output Current VOUT > 1.2V 300 mA Short Circuit Current VOUT < 1.05V 150 300 mA Current Limit VOUT>1.2V 300 450 mA Quiescent Current VIN=5V, No Load 30 35 μA Ground Pin Current I = 1mA to 300mA 30 35 μA IOUT=5mA, VIN=VOUT+1 to VOUT+2, VOUT <= 3.0V -0.15 0.03 0.15 Line Regulation IOUT=5mA, VIN=VOUT+1 to VOUT+2, VOUT > 3.0V -0.3 0.06 0.3 % Load Regulation Io=1mA to 300mA 0.2 1 % f=1KHz 60 dB f=10KHz 50 Power Supply Rejection IO = 100mA CO=2.2µF ceramic f=100KHz 40 Over Temperature Shutdown 150 ℃ Over Temperature Hysteresis 30 ℃ Output Noise F=10Hz to 100kHz, CO=2.2µF, IO = 10mA 30 μVrms Output Voltage Temp. Coeff. 25 ppm/℃ Note 1. VIN(MIN) = VOUT + 0.3V DETAILED DESCRIPTION The CM2830/CM2830A family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, thermal shutdown, and short circuit protection. The P-channel pass transistor receives data from the error amplifier, over-current shutdown, short output protection, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits become active when the junction temperature exceeds 150℃, or the current exceeds 300mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120℃. The CM2830/CM2830A switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The CM2830 also incorporates current fold-back to reduce power dissipation when the output is short-circuited. This feature becomes active when the output drops below 1.05V, and reduces the current flow by 65%. Full current is restored when the voltage exceeds 1.05V. EXTERNAL CAPACITOR The CM2830/2830A is stable with an output capacitor to ground of 2.2µF or greater. It can keep stable even with higher or poor ESR capacitors. A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be larger than 0.1µF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A “quiet” ground termination is desirable. |
Similar Part No. - CM2830A |
|
Similar Description - CM2830A |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |