參數(shù)資料
型號(hào): TPS51317RGBT
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PQCC20
封裝: 4 X 3.50 MM, GREEN, PLASTIC, QFN-20
文件頁(yè)數(shù): 26/28頁(yè)
文件大小: 1000K
代理商: TPS51317RGBT
1
11
PGND
SW
TPS51317
OC
ZC
XCON
16
BST
18
V5IN
PWM
10
19
PGOOD
Control Logic
UDG-11058
+
V
REFIN
+20%
+
VOUT
+
t
ON
One-
Shot
UV
OV
V
REFIN
–30%
+
8 R
8
COMP
R
6
GND
7
VREF
On-Time
Selection
15 mA
18
MODE
V
REFIN
16 %
V
REFIN
16 %
+
Discharge
UVP
OVP
Current
Sense
+
VS
Smplifier
Current Sense
Amplifier
SW
PGND
4
5
VIN
12
SW
13
SW
14
SW
15
SW
2
PGND
3
PGND
17
EN
Delay
On/Off Time
Minimum On/Off
SKIP/RR (OTP)
OCL/OVP/UVP
DIsharge
+
9
REFIN
SS
Ramp
Comp
VBG
ZC Threshold
Modulation
PGND
GND
SLUSAH9
– MARCH 2011
BLOCK DIAGRAM
Copyright
2011, Texas Instruments Incorporated
7
Product Folder Link(s): TPS51317
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