參數(shù)資料
型號(hào)： TPS51461RGET
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PQCC24
封裝： 4 X 4 MM, GREEN, PLASTIC, QFN-24
文件頁(yè)數(shù)： 28/31頁(yè)
文件大小： 1627K
代理商： TPS51461RGET
TPS51461RGE
V
IN
V
IN
S
W
S
W
V
IN
P
G
N
D
P
G
N
D
P
G
N
D
S
W
S
W
S
W
B
S
T
EN
MODE
VOUT
COMP
SLEW
VREF
GND
VID0
VID1
PGOOD
V5DRV
V5FILT
2
3
4
5
6
7
8
9
10
11
1
12
13
14
15
16
17
18
24
23
22
21
20
19
Thermal Pad
SLUSAD9 – DECEMBER 2010
www.ti.com
RGE PACKAGE
PIN FUNCTIONS
PIN
I/O
DESCRIPTION
NO.
NAME
19
20
PGND
I
Power ground. Source terminal of the rectifying low-side power FET. Positive input for current sensing.
21
22
23
VIN
I
Power supply input pin. Drain terminal of the switching high-side power FET.
24
1
GND
–
Signal ground.
2
VREF
O
2.0-V reference output. Connect a 0.22-F ceramic capacitor to GND.
3
COMP
O
Connect series R/C or R between this pin and VREF for loop compensation.
4
SLEW
I/O
Program the startup and voltage transition time using an external capacitor via 10-A current source.
5
VOUT
I
Output voltage monitor input pin.
6
MODE
I
Allows selection of switching frequencies and output voltage. (See Table 3)
7
8
9
SW
I/O
Switching node output. Connect to the external inductor. Also serve as current-sensing negative input.
10
11
12
Power supply for internal high-side gate driver. Connect a 0.1-F bootstrap capacitor between this pin and
BST
I
the SW pin.
13
EN
I
Enable of the SMPS.
14
VID0
I
2-bit VID input.
15
VID1
16
PGOOD
O
Power good output. Connect pull-up resistor.
17
V5FILT
I
5-V power supply for analog circuits.
18
V5DRV
I
5-V power supply for the gate driver.
6
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS51461
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參數(shù)描述
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