LD6815_SER All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 2 — 14 December 2012 10 of 20
NXP Semiconductors
LD6815 series
Low dropout regulators, high PSRR, 150 mA
10. Application information
10.1 Capacitor values
The LD6815 series requires external capacitors at the output to guarantee a stable
regulator behavior. Do not under-run the specified minimum Equivalent Series
Resistance (ESR). The absolute value of the total capacitance attached to the output pin
OUT influences the shutdown time (t
sd(reg)
) of the LD6815 series. Also an input capacitor
is recommended to keep the input voltage stable.
[1] The minimum value of capacitance for stability and correct operation is 0.7 F. The specified capacitor
tolerance is 30 % or better over the temperature and operating conditions range. The recommended
capacitor type is X7R to meet the full device temperature specification of 40 Cto+125C.
11. Test information
11.1 Quality information
This product has been qualified in accordance with NX1-00023 NXP Semiconductors
Quality and Reliability Specification and is suitable for use in consumer applications.
Table 9. External load capacitor
Symbol Parameter Conditions Min Typ Max Unit
C
ext(IN)
external capacitance on pin IN
[1]
0.7 1.0 F
C
L(ext)
external load capacitance
[1]
0.7 1.0 - F
ESR equivalent series resistance 5 - 500 m
Fig 12. Application diagram
OUT
OUTIN
GND
IN
EN
1μF
1μF
001aan647
