Electronic Components Datasheet Search |
|
AS1371-BTDT-105 Datasheet(PDF) 11 Page - ams AG |
|
AS1371-BTDT-105 Datasheet(HTML) 11 Page - ams AG |
11 / 14 page www.austriamicrosystems.com Revision 1.04 11 - 14 AS1371 Datasheet - A p p l i c a t i o n I n f o r m a t i o n 9 Application Information Capacitor Selection and Regulator Stability Ceramic capacitors are highly recommended as they offer distinct advantages over their tantalum and aluminum electrolytic components. For stable operation with load currents up to 400mA over the entire device temperature range, use a 1µF (min) ceramic output capacitor with an ESR <0.2 Ω. Use large output capacitor values (e.g. 10µF) to reduce noise and improve load transient-response, stability and power-supply rejection. Note: Some ceramic capacitors exhibit large capacitance and ESR variations with variations in temperature. Power Supply Rejection Ratio The AS1371 is designed to deliver low dropout voltages and low quiescent currents. Power-supply rejection is typically 50dB at 10kHz. To improve power supply-noise rejection and transient response, increase the values of the input and output bypass capacitors, which are shown in Figure 14. The Section 6 Electrical Characteristics on page 4 show also the device line- and load-transient responses. Dropout Voltage For standard products with output voltage greater than the minimum VIN (1.2V), the minimum input-output voltage differential (dropout voltage) determines the lowest usable supply voltage. This determines the useful end-of-life battery voltage in battery-powered systems. The dropout voltage is a function of the P-MOSFET drain-to-source on- resistance multiplied by the load current, and is calculated by: Where: RDS(ON) is the drain-to-source on -resistance. IOUT is the output current. Figure 14. Application Diagrams (EQ 4) V DROPOUT V IN V OUT – R DS ON () I OUT × == Input 1.2V to 3.6V CIN 1 µF ON / OFF COUT 1µF Output 0.6V to 3.3V IN EN GND SENSE OUT AS1371 POK R2 R1 Input 1.2V to 3.6V CIN 1 µF ON / OFF COUT 1µF Output 0.6V to 3.3V IN EN GND SENSE OUT AS1371 POK External Voltage Level Detection (Input Monitoring) Internal Voltage Level Detection (Output Monitoring) RPU 100k Ω RPU 100k Ω |
Similar Part No. - AS1371-BTDT-105 |
|
Similar Description - AS1371-BTDT-105 |
|
|
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 |