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TPS56C20PWPR 데이터시트(PDF) 5 Page - Texas Instruments

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부품명 TPS56C20PWPR
상세설명  Synchronous Step-Down Voltage Regulator with Voltage Scaling
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

TPS56C20PWPR 데이터시트(HTML) 5 Page - Texas Instruments

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VIN
VBST
VFB
GND
VREG5
PGND
6
EN
5
1
3
SS
2
4
7
TPS56C20
HTSSOP 24
8
(PowerPAD)
9
10
A1
SCL
SDA
15
16
VOUT
PVIN
PGOOD
SW
SW
SW
PGND
PVIN
A0
PGND
11
12
PGND
14
13
SW
SW
17
18
19
24
20
21
22
23
5
TPS56C20, TPS56920, TPS56720, TPS56520
www.ti.com
SLVSCB6D – NOVEMBER 2013 – REVISED FEBRUARY 2016
Product Folder Links: TPS56C20 TPS56920 TPS56720 TPS56520
Submit Documentation Feedback
Copyright © 2013–2016, Texas Instruments Incorporated
TPS56C20
24-Terminal PWP Package with PowerPAD
(TOP VIEW)
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NUMBER
EN
1
I
Enable. Pull High to enable according converter.
SDA
2
I/O
Data I/O terminal.
SCL
3
I/O
Clock I/O terminal.
A1, A0
4,5
I
Chip address.
VIN
6
I
Supply Input for 5.5V linear regulator.
PVIN
7,8
I
Power inputs and connects to both high side NFET drains.
PGND
9,10,11,12
I/O
Ground returns for low-side MOSFETs. Input of current comparator.
SW
13,14,15,
16, 17
I/O
Switch node connections for both the high-side NFETs and low-side NFETs. Input of current
comparator.
VBST
18
I
Supply input for high-side NFET gate drive circuit. Connect 0.1µF ceramic capacitor between
VBST and SW terminals. An internal diode is connected between VREG5 and VBST.
PGOOD
19
O
Open drain power good output. Low means the output voltage of the corresponding output is
out of regulation.
VREG5
20
O
Output of 5.5V linear regulator. Bypass to GND with a high-quality ceramic capacitor of at least
3.0µF ceramic capacitor. Do not connect any other circuitry to the terminal. VREG5 is active
when EN is H-level.
GND
21
I/O
Signal GND. Connect sensitive SS and VFB returns to GND at a single point.
SS
22
O
Soft-Start Programming terminal. Connect Capacitor from SS terminal to GND to program Soft-
Start time.
VOUT
23
I
Connection to output voltage
VFB
24
I
D-CAP2 feedback inputs. Connect to output voltage with resistor divider.
Exposed Thermal
Pad
Back side
I/O
Thermal pad of the package. Must be soldered to achieve appropriate dissipation. Must be
connected to GND.


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