Rainbow Electronics MAX8902B - Manual (Page 6)

MAX8902A/MAX8902B
Bypass (BYP)
The capacitor connected from BYP to OUT filters the
noise of the reference, feedback resistors, and regula-
tor input stage and provides a high-speed feedback
path for improved transient response. A 0.01µF capaci-
tor rolls off input noise at approximately 32Hz.
The slew rate of the output voltage during startup is
also determined by the BYP capacitor. A 0.01µF
capacitor sets the slew rate to 5V / ms. This startup rate
results in a 50mA slew current drawn from the input at
startup to charge the 10µF output capacitance.
Low-Noise 500mA LDO Regulators
in a 2mm x 2mm TDFN Package
6 _______________________________________________________________________________________
VOLTAGE
SELECT
SELA
SELB
990k Ω
OUTS
EA
BYP
OUT
GND
REF
0.6V
BYP
MAX8902A ONLY
FB
CONTROL EN
THERMAL
PROTECTION
POK
IN
CURRENT
LIMIT
REVERSE
CURRENT
PROTECTION
MAX8902B ONLY
0.54V
MAX8902A
MAX8902B
Figure 1. Simplified Functional Diagram