Rainbow Electronics MAX5093 - Manual (Page 10)

MAX5092/MAX5093
4V to 72V Input LDOs with Boost Preregulator
10 ______________________________________________________________________________________
MAX5092_
INTERNAL
LDO
Q
Q
V PK
R1
R S
IN
VL
VL
LX
LX
BSOUT
BSFB
OUT
OUT_SENSE
SET
CT
RESET
R2
LDO
ERROR AMPLIFIER
MUX
S
R
IN OUT
DRIVER
2.25µs
ONE-SHOT
1µs
ONE-SHOT
CURRENT-LIMITING
COMPARATOR
IN OUT
MUX
DELAY
COMPARATOR
CT
COMPARATOR
0.92 x V REF
VL
2µA
SGND PGND_LDO
P
PGND_BST
CONTROL LOGIC,
THERMAL SHUTDOWN,
AND OVERCURRENT
PROTECTION
R3
R4
V REF
V REF
HOLD
EN
Figure 1. MAX5092_ Functional Diagram
Functional Diagrams