THV3056 Datasheet, PDF (17/32 Pages) THine Electronics, Inc. – 3ch Buck/Boost 2ch CP 1ch HVLDO 1ch LVLDO Controller

THV3056_Rev.2.00_E
● Low Voltage LDO(of 3.3V output)
Figure 4 shows the circuit diagram of Low voltage LDO. Applies the voltage of 5V to V_LLDO pin and outputs 3.3V.
When using the external 3.3V without LDO, short-circuit V_LLDO pin and OUT_LLDO pin and apply 3.3V.
SS_LLDO
1uA
VREF12
V_LLDO
(5V Input)
1.2V
Clam p Circuit
≒2.2V
OUT_LLDO
(Output for 3.3V LDO)
Figure 4. Low voltage LDO Circuit
● TCON Reset Circuit
TCON reset circuit generates a signal of High level, when the startup of OUT_LLDO and VGH are completed normally.
(See Figure 5, Figure 6.)
OUT_LLDO
(Output for 3.3V LDO)
80%
TCON_XRST
VREF
VGH_OK
Figure 5. TCON Reset Circuit
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