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參數資料
| 型號： | TPS62225DDCT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 0.4 A SWITCHING REGULATOR, 1850 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | GREEN, PLASTIC, TSOT-23, 5 PIN |
| 文件頁數： | 19/24頁 |
| 文件大小： | 676K |
| 代理商： | TPS62225DDCT |
PIN ASSIGNMENTS
3
2
4
5
1
VI
GND
EN
SW
FB
SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
VI = 3.6 V, VO = 1.8 V, IO = 200 mA, EN = VIN, TA = -40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Line regulation
VI = 2.5 V to 6 V, IO = 10 mA
0.26
%/V
Load regulation
IO = 100 mA to 400 mA
0.0014
%/mA
Leakage current into SW pin
VI > VO, 0 V ≤ V(SW) ≤ VI
0.1
1
A
Ilkg
Reverse leakage current into pin SW
VI = open, EN = GND, V(SW) = 6 V
0.1
1
A
DDC PACKAGE
(TOP VIEW)
Pin Functions
PIN
I/O
DESCRIPTION
NAME
NO.
EN
3
I
This is the enable pin of the device. Pulling this pin to ground forces the device into shutdown mode.
Pulling this pin to Vin enables the device. This pin must be terminated.
FB
4
I
This is the feedback pin of the device. Connect this pin directly to the output if the fixed output voltage
version is used. For the adjustable version, an external resistor divider is connected to this pin. The
internal voltage divider is disabled for the adjustable version.
GND
2
Ground
SW
5
I/O
Connect the inductor to this pin. This pin is the switch pin and is connected to the internal MOSFET
switches.
VI
1
I
Supply voltage pin
4
Copyright 2003–2009, Texas Instruments Incorporated
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