JAJSH95 April 2019 LM2840-Q1 , LM2841-Q1 , LM2842-Q1
PRODUCTION DATA.
The selection of COUT is driven by the maximum allowable output voltage ripple. The output ripple in the constant frequency, PWM mode is approximated by Equation 6.
The ESR term usually plays the dominant role in determining the voltage ripple. Low-ESR ceramic capacitors are recommended. Capacitors in the range of 22 µF to 100 µF are a good starting point with an ESR of 0.1 Ω or less.
MANUFACTURER | CAPACITOR | CONTACT INFORMATION |
---|---|---|
Vishay Sprague | 293D, 592D, and 595D series tantalum | www.vishay.com
407-324-4140 |
Taiyo Yuden | High capacitance MLCC ceramic | www.t-yuden.com
408-573-4150 |
Cornell Dubilier | ESRD seriec Polymer Aluminum Electrolytic
SPV and AFK series V-chip series |
www.cde.com |
MuRata | High capacitance MLCC ceramic | www.murata.com |