參數(shù)資料
型號(hào)： TPS56300PWP
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 2 A DUAL SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO28
封裝： GREEN, PLASTIC, HTSSOP-28
文件頁(yè)數(shù)： 2/39頁(yè)
文件大?。?/td> 1063K
代理商： TPS56300PWP
TPS56300
DUALOUTPUT LOW INPUT VOLTAGE
DSP POWER SUPPLY CONTROLLER WITH SEQUENCING
SLVS261B DECEMBER 1999 SEPTEMBER 2000
10
www.ti.com
electrical characteristics TJ = 40° to 125°C, VCC = 2.8 V to 5.5 V (unless otherwise noted)
high-side VDS sensing
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Gain
2
V/V
Initial accuracy
VHISENSE = 3.3 V,
VIOUTLO = 3.2 V,
Differential input to Vds sensing amp = 100 mV
194
208
mV
Common-mode rejection ratio
VHISENSE=2.8 V to 5.5 V,
VHISENSE VIOUTLO=100 mV
69
75
dB
Sink current (IOUTLO)
2.8 V < VIOUTLO < 5.5 V
250
nA
Source current (IOUT)
VIOUT = 0.5 V,
VHISENSE=3.3 V,
VIOUTLO=2.8 V
500
A
Sink current (IOUT)
VIOUT = 0.05 V,
VHISENSE=3.35 V,
VIOUTLO=3.3 V
50
A
VHISENSE=5.5 V,
RIOUT = 10 k
0
1.75
Output voltage swing
VHISENSE=4.5 V,
RIOUT = 10 k
0
1.5
V
Output voltage swing
VHISENSE=3 V,
RIOUT = 10 k
0
0.75
V
LOSENSE high level input voltage
VHISENSE=2.8 V,
See Note 2
1.77
V
LOSENSE low level input voltage
VHISENSE=2.8 V,
See Note 2
1.49
V
LOSENSE high level input voltage
VHISENSE=4.5 V,
See Note 2
2.85
V
LOSENSE low level input voltage
VHISENSE=4.5 V,
See Note 2
2.4
V
LOSENSE high level input voltage
VHISENSE=5.5 V,
See Note 2
3.80
V
LOSENSE low level input voltage
VHISENSE=5.5 V,
See Note 2
3.2
V
VHISENSE = 6 V,
See Note 2
70
90
Sample/hold resistance
VHISENSE = 4.5 V,
See Note 2
80
100
Sample/hold resistance
VHISENSE = 3.6 V,
See Note 2
90
120
VHISENSE = 2.8 V,
See Note 2
120
180
VHISENSE = 2.55 V,
VIOUTLO pulsed from 2.55 V to 2.45 V,
100 ns rise and fall times,
See Note 2
4
Response time (measured from 90% of
VHISENSE = 2.8 V,
VIOUTLO pulsed from 2.8 V to 2.7 V,
100 ns rise and fall times,
See Note 2
3.5
s
Response time (measured from 90% of
VIOUTLO to 90% of VIOUT)
VHISENSE = 4.5 V,
VIOUTLO pulsed from 4.5V to 4.4V,
100 ns rise and fall times,
See Note 2
3
s
VHISENSE = 5.5 V,
VIOUTLO pulsed from 5.5 V to 5.9 V,
100 ns rise and fall times,
See Note 2
3
Short circuit protection rising edge delay
LOSENSE grounded,
See Note 2
300
500
ns
Sample/hold switch turnon/turnoff delay
2.8V < VHISENSE < 5.5V,
VLOSENSE = VHISENSE,
See Note 2
30
100
ns
NOTE 2. Ensured by design, not production tested.
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