THV3058_Rev.1.00_E
THV3058
3CH (Buck/Boost) 2CH CP 1CH HVLDO Controller
Description
THV3058 is a controller IC for multi-channel power
supply system with 3 channel PWM DC/DC convert-
ers(CH-1 Boost/CH-2, CH-3 Buck) and 2 channel
charge pump circuits.
THV3058 contains internal soft start, under voltage
protection, over voltage protection and over current
protection, which helps reducing the number of exter-
nal component count and increasing reliability.
Built-in positive and negative charge pump cir-
cuits(VGL/VGH) achieve enhanced performance.
Ceramic capacitors are available for output, that pro-
vides space-saving and low cost system.
THV3058 is ideal for TFT-LCD bias power supply
system.
Features
• QFN 36 pin package
• Input Voltage range : 9 ~ 15V
• Push Pull output for direct Power MOS driving
• Optimized for ceramic output capacitor
• Complete PWM mode controller
• Positive/Negative charge pumps
(PFM mode controller)
• Switching Frequency : 500kHz
• Under Voltage Protection (Timer Latch )
• DC/DC Over Voltage Protection
(CH-2, CH-3 : Timer Latch )
• DC/DC Over Current Protection
• UVLO function
• CH-1 Boost Converter
• CH-2 Buck Converter (Reference Voltage:0.85V)
• CH-3 Buck Converter (Output Voltage : 3.3V)
• High Voltage LDO
Application
½
TFT-LCD Bias power supply
Pin Assignment
OUT_HLDO
LSW_OUT
INV_HLDO
SYSUVLO
OUT_L2
28
VCC
INV2
FB2
36
35
34
33
32
31
30
29
CS2
OUT1
CS1
VREG5
VGH_OK
INV1
FB1
PC3
SGND
VO3_IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
27
26
OUT_H2
LL2
BST2
OUT_VGH
V_VGH
V_VGL
OUT_VGL
PGND_CP
NON_VGL
QFN 36PIN
Exposed Pad
(TOP VIEW)
25
24
23
22
21
20
19
18
INV_VGH
37GNDEXP
PGND
LL3
OUT3
BST3
VREF
TEST1
Copyright©2010 THine Electronics, Inc.
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THine Electronics, Inc.
TEST2
CS3
THINE [ THINE ELECTRONICS, INC. ]
