THV3058 Datasheet, PDF (1/21 Pages) THine Electronics, Inc. – 3CH (Buck/Boost) 2CH CP 1CH HVLDO Controller

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
ï½¥ TFT-LCD Bias power supply
Pin Assignment
OUT1
1
CS1
2
VREG5
3
VGH_OK
4
INV1
5
FB1
6
PC3
7
SGND
8
VO3_IN
9
QFN 36PIN
Exposed Pad
(TOP VIEW)
37GNDEXP
27
OUT_H2
26
LL2
25
BST2
24
OUT_VGH
23
V_VGH
22
V_VGL
21
OUT_VGL
20
PGND_CP
19
NON_VGL
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THine Electronics, Inc.