參數(shù)資料
型號(hào)： TPS6223-1.5DRYT
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6
封裝： 1 X 1.50 MM, 0.60 MM HEIGHT, PLASTIC, MO-287UFAD, SON-6
文件頁(yè)數(shù)： 22/28頁(yè)
文件大?。?/td> 1276K
代理商： TPS6223-1.5DRYT
www.ti.com....................................................................................................................................................... SLVS941A – APRIL 2009 – REVISED AUGUST 2009
RECOMMENDED OPERATING CONDITIONS
operating ambient temperature TA = –40 to 85°C (unless otherwise noted)
(1)
MIN
NOM
MAX
UNIT
Supply voltage VIN
(2)
2.05
6
V
Effective inductance
2.2
μH
Effective capacitance
2.0
4.7
μF
VOUT ≤ VIN -1 V
(3)
500 mA maximum IOUT
(4)
3.0
3.6
Recommended minimum
350mA maximum IOUT
(5)
2.5
2.7
V
supply voltage
VOUT ≤ 1.8V
60 mA maximum output current(5)
2.05
Operating virtual junction temperature range, TJ
–40
125
°C
(1)
In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may
have to be derated. Maximum ambient temperature (TA(max)) is dependent on the maximum operating junction temperature (TJ(max)), the
maximum power dissipation of the device in the application (PD(max)), and the junction-to-ambient thermal resistance of the part/package
in the application (
θJA), as given by the following equation: TA(max) = TJ(max) – (θJA × PD(max)).
(2)
The minimum required supply voltage for startup is 2.05 V. The part is functional down to the falling UVL (Under Voltage Lockout)
threshold.
(3)
For a voltage difference between minimum VIN and VOUT of ≥ 1 V
(4)
Typical value applies for TA = 25°C, maximum value applies for TA = 70°C with TJ ≤ 125°C, PCB layout needs to support proper thermal
performance.
(5)
Typical value applies for TA = 25°C, maximum value applies for TA = 85°C with TJ ≤ 125°C, PCB layout needs to support proper thermal
performance.
Copyright 2009, Texas Instruments Incorporated
3
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