Rainbow Electronics MAX5090C - Manual (Page 8)

MAX5090A/B/C
2A, 76V, High-Efficiency MAXPower Step-Down
DC-DC Converters
8 _______________________________________________________________________________________
MAX5090
REGULATOR
(FOR ANALOG)
ENABLE
LX
BST
V IN
ON/OFF
VREF
REGULATOR
(FOR DRIVER) OSC RAMP
IREF-PFM
IREF-LIM
CPFM
1.38V
CILIM
FB
EAMP
THERMAL
SHUTDOWN
CPWM
VD
PGND
RAMP
CLK
CONTROL
LOGIC
TYPE 3
COMPENSATION
SGND
x1
*R H
DRAIN
SYNC
SS
MIN
SRAMP
MUX
SRMP
SCK
*R L
CLKI RMP
N
HIGH-SIDE
CURRENT SENSE
*R H = 0 Ω AND R
L = ∞ FOR MAX5090C
Simplified Functional Diagram