LT1947EMS Linear Technology, LT1947EMS Datasheet - Page 9

• Manufacturer Part Number: LT1947EMS
• Description: IC SW REG TFT-LCD TRPL ADJ10MSOP
• Manufacturer: Linear Technology

Specifications of LT1947EMS

• Applications: Converter, TFT, LCD
• Voltage - Input: 2.7 ~ 8 V
• Number Of Outputs: 3
• Voltage - Output: Adjustable up to 30V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL APPLICATIO S
SHUTDOWN
SHUTDOWN
3.3V
4.7µF
C1: TAIYO YUDEN JMK316BJ475MD
C2: TAIYO YUDEN LMK325BJ335MD
C3: AVX 0.22µF 25V X7R
C4, C6: TAIYO YUDEN LMK107BJ684MA
V
IN
CERAMIC
C1
4.7µF 6.3V X7R
3.3µF 10V X7R ×2
3.3V
C1: TAIYO YUDEN LMK316BJ225MD 2.2µF X7R
C2: TAIYO YUDEN LMK325BJ335MD 3.3µF X5R
C3, C6: AVX 0.22µF CERAMIC X7R
C4: TAIYO YUDEN EMK212BJ684MD
2.2µF
V
U
0.68µF 10V X7R
IN
C1
TFT-LCD Bias Generator: 12V, 20V, – 6V Output
TFT-LCD Bias Generator: 10V, 24V, – 6V Output
L2
4.7µH
D2
C3
0.22µF
L2
4.7µH
D2
C3
220nF
R3
147k
R4
10k
R3
182k
R4
10k
SW2
V
FB2
O2
SHDN C
10nF
V
IN
C5
SW2
V
FB2
O2
SHDN C
LT1947
D1: MBRM120
D2: CMDSH-3
L1: SUMIDA CLQ4DI04R7
L2: TAIYO YUDEN LB2012B4R7M
Q1: MMBT3904 NPN
Q2: MMBT3906 PNP
10nF
V
4.7µH
IN
C5
L1
T
LT1947
D3
3.3µH
L1
SW1
GND
T
BAT54S
V
D3
FB1
ON
D1: MBRM120
D2: CMDSH-3
L1: SUMIDA CLQ4DI03R3
L2: TAIYO YUDEN LB2012B-4R7M
SW1
GND
V
BAT54S
FB1
ON
C6
D1
D4
D1
C6
220nF
D4
R1
86.6k
R2
10k
R1
69.8k
R2
10k
1947 TA02
C4
C2
3.3µF
CERAMIC
×2
34k
Q1
AV
12V
120mA
V
20V
10mA
1947 TA04
C4
0.68µF
ON
C2
3.3µF
CERAMIC
×2
DD
AV
10V
150mA
V
–6V
10mA
V
24V
10mA
Q2
OFF
ON
34k
DD
V
–6V
20mA
OFF
LT1947
1947fa
9