Datasheet

High-Voltage, 2.2MHz, 2A Automotive Step-
Down Converter with Low Operating Current
MAX16974
8 ______________________________________________________________________________________
Figure 1. 3.3V Fixed Output Voltage Configuration
Pin Configuration
MAX16974
D1
C
OUT
47µF
C
OUT1
47µF
C
IN2
4.7µF
C
IN1
47µF
C
CRES
1nF
R
COMP
20kI
R
RES
10kI
R
FB1
124kI
R
FB2
56kI
R
FOSC
82kI
L1
15µH
V
OUT
=
3.3V AT 2A AT 300kHz
C
BST
0.1µF
LX
BST
V
OUT
PLACE C
IN2
(4.7µF) AND C
IN3
(0.1µF) NEXT TO SUP.
PLACE C
IN4
(0.1µF) AND C
IN5
(4.7µF) NEXT TO SUPSW.
OUT
V
BAT
FB
RESETI
V
BIAS
RES
FOSC
CRES
C
BIAS
1µF
C
COMP2
OPEN
BIAS
C
COMP1
5600pF
COMP
FSYNC
EN
SUPSWSUP
C
IN3
0.1µF
C
IN4
0.1µF
C
IN5
4.7µF
GND
+
TOP VIEW
MAX16974
TSSOP
13
4
SUPSWI.C.
14
3
ENFSYNC
15
2
RES
FOSC
16
1
RESETICRES
10
7
BST
OUT
11
6
SUPFB
9
8
BIASGND
12
5
LX
COMP
EP