MAX1889ETE Maxim Integrated Products, MAX1889ETE Datasheet - Page 11

• Manufacturer Part Number: MAX1889ETE
• Description: DC/DC Switching Converters
• Manufacturer: Maxim Integrated Products

Specifications of MAX1889ETE

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 1. Standard Application Circuit
V
V
-7V
MAIN
NL
REF
0.47µF
V
2.7V TO 5.5V
C8
0.1µF
IN
C1
0.15µF
150kΩ
1%
R3
D2
C9
1MΩ
10Ω
LX
R5
R1
C10
1µF
R14
221kΩ
Q1
______________________________________________________________________________________
51.1kΩ
1%
R2
3kΩ
R8
1000pF
150kΩ
C19
1%
R9
Triple-Output TFT LCD Power Supply
P1
1MΩ
1000pF
C22
R4
24.3kΩ
2200pF
15kΩ
C24
R19
100pF
3.3µF
R10
1%
6.3V
C23
C2
ANALOG GROUND
(GND)
15
14
16
10
3.3µF
1
7
6
6.3V
C3
GATE
OCP
IN
SHDN
FREQ
DRVN
FBN
OPTIONAL
OCN
13
POWER GROUND
R15
43.2kΩ
1%
MAX1889
(PGND)
4.7µH
L1
150kΩ
R16
1%
LX
PGND
TGND
DRVP
11
GND
REF
FBP
FB
with Fault Protection
5
12
4
3
2
8
9
D1
12.1kΩ
0.22µF
75kΩ
C7
1%
1%
R6
R7
LX
470pF
51kΩ
R20
C20
R13
20kΩ
1%
OPTIONAL
301kΩ
1000pF
R12
1%
C21
R17
1MΩ
C16
0.01µF
R18
10kΩ
C17
220pF
3kΩ
REF
R11
EXTERNAL LOGIC SIGNAL
(ENABLE = LOW)
EXTERNAL LOGIC SIGNAL
(ENABLE = LOW)
4.7µF
10V
C4
Q2
LX
C15
1µF
D3
C13
0.15µF
4.7µF
10V
C5
C11
0.1µF
4.7µF
10V
C6
C14
0.1µF
D4
V
+20V
PL
C12
0.1µF
V
9V
MAIN
11