THV1031-Rev0.12W
Preliminary
THV1031
3ch Buck, Boost and Inverting Controller
General Description
THine's new 3ch Buck/Boost & Inverting controller
enables simple & low cost multi-channel power supply
system design. Ch-1 is selectable Buck/Boost controller,
ch-2 is Buck converter, and ch-3 is selectable Inverting /
Buck converter.
All channels are PWM controllers and are designed to
make phase compensation easy for output ceramic
capacitors.
SS_1,2,3, DTC_1,3, and SCP pins help to design user
defined soft start time, dead time and timer latch delay
time. Utilizing those pins and P_GOOD 1,2,3, the
ensured sequence control can be easily set and linked to
the external circuit.
This IC is suitable for power supply system of TFT LCD
bias and for system board with multi-channel power
supply.
Features
•TSSOP 30Pin package
•Input Voltage range : 4.2 to 15.0V
•Push Pull output for direct Power Mos driving
•Optimized for Ceramic output capacitor
•Complete PWM mode controller
•Adjustable switching frequency up to 1MHz
by external resister
•Timer Latch Protection
• System UVLO Function
•Adjustable Soft Start time by external capacitor
•Adjustable Timer Latch Delay time
by external capacitor
•Adjustable Dead Time Control by external
resistor
•Boost mode selectable on ch-1
•Inverting mode selectable on ch-3
•Buck mode selectable on ch-1, 2, 3
Applications
•
TFT LCD Bias voltage supply
lim
P re
in a
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Pin Asignment
TSSOP 30Pin
SYSUVLO
SCP
FB_1
INV_1
SS_1
DTC_1
FB_2
INV_2
SS_2
SGND
VREF
FB_3
INV_3
NON_INV_3
SS_VREF
XP_DET
PGND2
P_GOOD1
OUT_1
SLCT_1
OUT_2
P_GOOD2
PGND1
P_GOOD3
OUT_3
SLCT_3
VCC
RT
DTC_3
SS_3
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
• General use
ry
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THine Electronics, Inc.
THINE [ THINE ELECTRONICS, INC. ]
