参数资料
型号: TPS62354YZGT
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 1.6 A SWITCHING REGULATOR, 3350 kHz SWITCHING FREQ-MAX, BGA12
封装: GREEN, DSBGA-12
文件页数: 23/46页
文件大小: 1530K
代理商: TPS62354YZGT
RECOMMENDED OPERATING CONDITIONS
DISSIPATION RATINGS
(1)
ELECTRICAL CHARACTERISTICS
www.ti.com .............................................................................................................................................................. SLVS540E – MAY 2006 – REVISED APRIL 2008
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
VI
Input voltage range
2.7
5.5
V
TA
Operating temperature range(1)
-40
85
°C
TJ
Operating virtual junction temperature range
-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 (
θ
JA), as given by the following equation: TA(max)= TJ(max)–(θJA X PD(max)).
POWER RATING
DERATING FACTOR
PACKAGE
RθJA
(2)
FOR TA ≤ 25°C
ABOVE TA = 25°C
DRC
49
°C/W
2050 mW
21 mW/
°C
YZG
89
°C/W
1100 mW
12 mW/
°C
(1)
Maximum power dissipation is a function of TJ(max), θJA and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = [TJ(max) – TA] / θJA.
(2)
This thermal data is measured with high-K board (4 layers board according to JESD51-7 JEDEC standard).
over operating free-air temperature range, typical values are at TA = 25°C. Unless otherwise noted, specifications apply with
VI = 3.6 V, EN = VI, VSEL = VI, SYNC = GND, VSEL0[6] bit = 1.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
TPS62350/1/2/3/4/5
110
150
IO = 0 mA, Fast PFM mode enabled
A
Device not switching
TPS62356
117
160
Operating quiescent
IQ
TPS62350/1/2/3/4/5
28
45
IO = 0 mA, Light PFM mode enabled
current
A
Device not switching
TPS62356
35
52
TPS62350/1/2/3/4/5/6
IO = 0 mA, 3-MHz PWM mode operation
4.8
mA
EN = GND, EN_DCDC bit = X
0.1
2
A
I(SD)
Shutdown current
EN = VI, EN_DCDC bit = 0
6.5
A
V(UVLO)
Undervoltage lockout threshold
2.20
2.3
V
ENABLE, VSEL, SDA, SCL, SYNC
VIH
High-level input voltage
1.2
V
VIL
Low-level input voltage
0.4
V
Ilkg
Input leakage current
Input tied to GND or VI
0.01
1
A
POWER SWITCH
VI = V(GS) = 3.6 V, YZG package
250
500
TPS62350/1/2/3/4/5
VI = V(GS) = 3.6 V, DRC package
275
500
P-channel MOSFET on
rDS(on)
m
resistance
VI = V(GS) = 2.7 V, DRC package
350
750
TPS62356
VI = V(GS) = 3.2 V, YZG package
320
500
Ilkg
P-channel leakage current
V(DS) = 6 V
1
A
VI = V(GS) = 3.6 V, YZG package
150
350
N-channel MOSFET on
rDS(on)
TPS62350/1/2/3/4/5/6
VI = V(GS) = 3.6 V, DRC package
165
350
m
resistance
VI = V(GS) = 2.7 V, YZG / DRC package
210
500
Ilkg
N-channel leakage current
V(DS) = 6 V
1
A
R(DIS)
Discharge resistor for power-down sequence
15
50
TPS62350/1/2/3/4/5
1150
1350
1600
mA
P-MOS current limit
2.7 V
≤ VI ≤ 5.5 V
TPS62356
1300
1550
1800
mA
Copyright 2006–2008, Texas Instruments Incorporated
3
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