MAX8758ETG+T Maxim Integrated Products, MAX8758ETG+T Datasheet - Page 10

• Manufacturer Part Number: MAX8758ETG+T
• Description: IC REG STEP UP 24-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8758ETG+T

• Applications: Converter, TFT, LCD
• Voltage - Input: 1.8 ~ 5.5 V
• Number Of Outputs: 1
• Voltage - Output: 5V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The typical operating circuit (Figure 1) of the MAX8758
is a power-supply solution for TFT LCD panels in note-
book computers. The circuit generates a +8.5V source
driver supply, and approximately +22V and -7V gate
Step-Up Regulator with Switch Control
and Operational Amplifier for TFT LCD
Figure 1. Typical Operating Circuit
10
+1.8V TO +5.5V
-8V/20mA
V
______________________________________________________________________________________
GOFF
V
IN
3.3µF
6.3V
C1
Typical Operating Circuit
0.1µF
3.3µF
6.3V
C15
C2
220pF
C7
100kΩ
R10
FROM TCON
0.022µF
100kΩ
+24V/20mA
0.22µF
150pF
R3
33pF
V
1µF
C10
C11
10Ω
GON
C6
C8
C9
R4
20kΩ
R9
IN
FREQ
SHDN
COMP
LDO
SS
MODE
CTL
DRN
GON
D2
MAX8758
4.7µH
0.1µF
C6
L1
LX
PGND
SUPB
POSB
NEGB
OUTB
GND
OUT
THR
DLP
SRC
FB
0.1µF
0.1µF
C17
C18
driver supplies. The input voltage range for the IC is
from +1.8V to +5.5V, but the Figure 1 circuit is
designed to run from 2.7V to 3.6V. Table 1 lists some
selected components and Table 2 lists the contact
information of component suppliers.
D1
C12
0.1µF
C13
0.033µF
C14
0.1µF
D3
R1
200kΩ
1%
R2
34.0kΩ
1%
R5
100kΩ
R6
100kΩ
TO VCOM
BACKPLANE
D4
C19
0.1µF
C3
4.7µF
10V
R7
51.1kΩ
1%
R8
20.0kΩ
1%
C4
4.7µF
10V
C5
4.7µF
10V
+8.5V/300mA
V
MAIN