LTC3524EUF#PBF Linear Technology, LTC3524EUF#PBF Datasheet - Page 13

• Manufacturer Part Number: LTC3524EUF#PBF
• Description: IC TFT BIAS SUPPLY ADJ 24-QFN
• Manufacturer: Linear Technology

Specifications of LTC3524EUF#PBF

• Applications: LCD Display
• Voltage - Supply: 2.5 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Operating Supply Voltage (typ): 3.3/5V
• Number Of Segments: 8
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: QFN EP
• Pin Count: 24
• Mounting: Surface Mount
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Compliant

APPLICATIONS INFORMATION
and VH should be at least 0.47μF. Please be certain that
the capacitors used are rated for the maximum voltage
with adequate safety margin. Refer to Table 2 for a listing
of capacitor vendors.
Table 2. Capacitor Vendor Information
Supplier
AVX
Murata
Samsung
Taiyo Yuden
TDK
LAYOUT NOTES:
*KEEP R
LIGHT GREY TOP LAYER
VIA TO BOTTOM GROUND PLANE.
GROUND PLANE FILLS BOTTOM
V
GND
PROG
OUT
V
IN
AWAY FROM SW2 TRACES
[phone]
[phone]
[phone]
[phone]
[phone]
Phone
L1
R1
Figure 4. Suggested Layout Two Layer Board (Not to Scale)
www.component.tdk.com
www.sem.samsung.com
www.avxcorp.com
www.t-yuden.com
www.murata.com
Website
V OUT
ELCD
FBVO
SW1
V IN
C2 –
1
2
3
4
5
6
ELCD
ELED1 ELED2
ELED1
L2
C2 +
24
7
*
PROG
V2x
23
8
COMPONENT AND IC SIZES
ELED2
NOT TO SCALE
VN IN
Printed Circuit Board Layout Guidelines
High-speed operation of the LTC3524 demands care-
ful attention to PCB layout. You will not get advertised
performance with a careless layout. Figure 4 shows the
recommended component placement for a double layer
PCB. The bottom layer is used as a common ground plane
except for the VN trace.
22
9
TOP VIEW
GND
GND
SCHOTTKY DIODE
SW2
CN +
21
10
VLED
NC
20
11
SCHOTTKY
DIODE
LED1
VN
19
12
LED2
CH
CH
FBH
FBN
VH
18
17
16
15
14
13
–
+
VN
WHITE LEDs
WHITE LEDs
3524 F04
LTC3524
VH
13
3524f