TS30022 Datasheet, PDF (3/19 Pages) List of Unclassifed Manufacturers – High Efficiency 1A/2A/3A Current-Mode Synchronous Buck DC/DC Converter, 2MHz and 470mA LDO

TS30021/22/23
Version 1.5
FUNCTIONAL BLOCK DIAGRAM
PG
EN
Oscillator
Ramp
Generator
Vref
&
Softstart
MONITOR
&
CONTROL

4.2V
VCC
Under Voltage
Protection
Over & Under
Voltage
FB
Protection
Thermal
Protection
Over Current
Protection
VCC
VCC
Bootstrap
Voltage
VCC
Gate Drive
Control
Gate
Drive
Error Amp
Compensation
Network
Comparator
Vref
PFM Mode
Comparator
Gate
Drive
VLDO
Vref
VLDO
VCC
CBYPASS
BST
VIN
CBST
VSW
LOUT
PGND
FB
COUT
RTOPSW
V_LDO
RBOTSW
VOUT
GND
RBOT
FB_LDO
RTOP
VO_LDO
CLDO
Figure 2: TS30021/22/23 Block Diagram
EN
VOUT-UV
Filter
Filter
Internal
POR
Filter
VCC-UV
Filter
TSD
Filter
VOUT-OV
Filter
IOCD
OCD_Filter
PG
ENABLE
REGULATOR
TRISTATE
VSW OUTPUT
Figure 3: Monitor & Control Logic Functionality
Specifications subject to change
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