TI TPS22902BYFPR

TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
ULTRA SMALL, LOW INPUT VOLTAGE, LOW rON, LOAD SWITCHES
FEATURES
APPLICATIONS
•
•
•
•
•
•
•
•
•
•
1
•
•
•
•
•
•
•
Low Input Voltage: 1.0 V to 3.6 V
Ultra-Low ON Resistance
– rON = 78 mΩ at VIN = 3.6 V
– rON = 93 mΩ at VIN = 2.5 V
– rON = 109 mΩ at VIN = 1.8 V
– rON = 146 mΩ at VIN = 1.2 V
500-mA Maximum Continuous Switch Current
Ultra Low Quiescent Current: 82 nA at 1.8 V
Ultra Low Shutdown Current: 44 nA at 1.8 V
Low Control Input Thresholds Enable Use of
1.2-V/1.8-V/2.5-V/3.3-V Logic
Controlled Slew Rate to Avoid Inrush Currents
– TPS22901 and TPS22902: 40-µs tr
– TPS22902B: 220-µs tr
ESD Performance Tested Per JESD 22
– 2000-V Human-Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
Four-Terminal Wafer-Chip-Scale Package
(WCSP)
– 0.8 mm × 0.8 mm, 0.4 mm Pitch,
0.5 mm Height
Personal Digital Assistants (PDAs)
Cellular Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Portable Instrumentation
RF Modules
DESCRIPTION
TPS22901, TPS22902, and TPS22902B are
ultra-small, low ON resistance (rON) load switches
with controlled turn on. The devices contain a
P-channel MOSFET that operates over an input
voltage range of 1.0 V to 3.6 V. The switch is
controlled by an on/off input (ON), which is capable of
interfacing directly with low-voltage control signals. In
TPS22902 and in TPS22902B, a 120-Ω on-chip load
resistor is added for output quick discharge when the
switch is turned off.
TPS22901, TPS22902, and TPS22902B are available
in a space-saving 4-terminal WCSP with 0.4-mm
pitch (YFP). The devices are characterized for
operation over the free-air temperature range of
–40°C to 85°C.
YFP PACKAGE
TERMINAL ASSIGNMENTS
B
B
B
ON
GND
A
A
A
VIN
VOUT
2
1
2 1
Laser Marking View
1 2
Bump View
rON at 1.8 V
(TYP)
SLEW
RATE
(TYP at
1.8 V)
TPS22901
109 mΩ
40 µs
TPS22902
109 mΩ
40 µs
Yes
TPS22902B
109 mΩ
220 µs
Yes
(1)
QUICK OUTPUT
DISCHARGE (1)
MAX OUTPUT
CURRENT
ENABLE
500 mA
Active high
500 mA
Active high
500 mA
Active high
This feature discharges the output of the switch to ground through a 120-Ω resistor, preventing the
output from floating.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008–2009, Texas Instruments Incorporated
TPS22901, TPS22902, TPS22902B
SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
ORDERING INFORMATION
TA
–40°C to 85°C
(1)
(2)
PACKAGE
WCSP – YFP
(0.4 mm pitch)
(1) (2)
ORDERABLE PART NUMBER
Tape and reel
TOP-SIDE MARKING
TPS22901YFPR
_ _ _3P _
TPS22902YFPR
_ _ _3R _
TPS22902BYFPR
_ _ _3S _
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
TYPICAL APPLICATION
VBATT
VIN
SMPS
ON
(see Note A)
CIN = 1 µF
CL
LOAD
VOUT
TPS22901/02/02B
CL
RL
OFF
GND
GND
GND
A.
Switched mode power supply
APPLICATION BLOCK DIAGRAM
VIN
A2
Turn-On Slew Rate
Controlled Driver
ON
Control
Logic
B2
ESD Protection
A1
VOUT
Output Discharge
(TPS22902, TPS22902B Only)
B1
GND
Figure 1. Functional Block Diagram
FUNCTION TABLE
2
ON (Control Input)
VIN to VOUT
VOUT to GND
(TPS22902,
TPS22902B only)
L
OFF
ON
H
ON
OFF
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Product Folder Link(s): TPS22901 TPS22902 TPS22902B
TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
TERMINAL FUNCTIONS
TERMINAL
BALL NO.
NAME
A1
VOUT
A2
VIN
B1
GND
B2
ON
DESCRIPTION
Switch output
Switch input, bypass this input with a ceramic capacitor to ground
Ground
Switch control input, active high
ABSOLUTE MAXIMUM RATINGS (1)
MIN
VIN
Input voltage range
VOUT
Output voltage range
VON
Input voltage range
P
Power dissipation at TA = 25°C
IMAX
Maximum continuous switch current
TA
Operating free-air temperature range
–40
Tstg
Storage temperature range
–65
Tlead
Maximum lead temperature (10-s soldering time)
ESD
(1)
MAX
–0.3
4
V
VIN + 0.3
V
–0.3
Electrostatic discharge protection
UNIT
4
V
0.48
W
500
mA
85
°C
150
°C
300
°C
Human-Body Model (HBM)
2000
Charged Device Model (CDM)
1000
V
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
THERMAL IMPEDANCE RATINGS
UNIT
θJA
(1)
Package thermal impedance (1)
YFP package
205
°C/W
MIN
MAX
UNIT
1
3.6
The package thermal impedance is calculated in accordance with JESD 51-7.
RECOMMENDED OPERATING CONDITIONS
VIN
Input voltage range
VOUT
Output voltage range
VIH
High-level input voltage, ON
VIL
Low-level input voltage, ON
CIN
Input capacitor
(1)
V
VIN
0.85
3.6
0.4
1 (1)
V
V
µF
See Application Information.
Copyright © 2008–2009, Texas Instruments Incorporated
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SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS
VIN = 1.0 V to 3.6 V, TA = –40°C to 85°C (unless otherwise noted)
PARAMETER
IIN
Quiescent current
IIN(OFF)
IOUT = 0, VIN = VON
OFF-state supply current
IIN(LEAKAGE)
TA
MIN TYP (1)
MAX
VIN = 1.1 V
Full
37
120
VIN = 1.8 V
Full
82
235
VIN = 3.6 V
Full
204
880
VIN = 1.1 V
Full
22
210
VIN = 1.8 V
Full
44
260
VIN = 3.6 V
Full
137
700
VIN = 1.1 V
Full
22
140
VIN = 1.8 V
Full
45
230
Full
137
610
25°C
78
95
93
110
TEST CONDITIONS
OFF-state switch current
VON = GND, OUT = Open
VON = GND, VOUT = 0
VIN = 3.6 V
VIN = 3.6 V
VIN = 2.5 V
rON
ON-state resistance
IOUT = - 200 mA
VIN = 1.8 V
VIN = 1.2 V
VIN = 1.1 V
rPD
Output pulldown resistance
VIN = 3.3 V, VON = 0, IOUT = 30 mA
(TPS22902/TPS22902B only)
ION
ON input leakage current
VON = 1.1 V to 3.6 V or GND
(1)
4
Full
25°C
146
Full
nA
mΩ
200
200
174
Full
25°C
130
130
Full
25°C
nA
110
109
Full
25°C
nA
95
Full
25°C
UNIT
330
330
88
120
Ω
25
nA
Typical values are at the specified VIN and TA = 25°C.
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TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
SWITCHING CHARACTERISTICS
VIN = 1.1 V, TA = 25°C (unless otherwise noted)
PARAMETER
tON
tOFF
tr
tf
Turn-ON time
Turn-OFF time
VOUT rise time
VOUT fall time
TEST CONDITIONS
RL = 500 Ω
RL = 500 Ω
RL = 500 Ω
RL = 500 Ω
MIN
TYP
MAX
MIN
TYP
TPS22902B (1)
MAX
MIN
TYP
CL = 0.1 µF
108
108
531
CL = 1 µF
131
131
596
CL = 3.3 µF
153
153
659
CL = 0.1 µF
39
11
11
CL = 1 µF
317
69
67
CL = 3.3 µF
1105
238
225
CL = 0.1 µF
70
70
365
CL = 1 µF
78
78
367
CL = 3.3 µF
92
92
395
CL = 0.1 µF
107
18
21
CL = 1 µF
966
175
189
3532
632
565
CL = 3.3 µF
(1)
TPS22902 (1)
TPS22901
MAX
UNIT
µs
µs
µs
µs
RL_CHIP = 120 Ω
SWITCHING CHARACTERISTICS
VIN = 1.2 V, TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
CL = 0.1 µF
tON
tOFF
tr
tf
Turn-ON time
Turn-OFF time
VOUT rise time
VOUT fall time
RL = 500 Ω
RL = 500 Ω
RL = 500 Ω
RL = 500 Ω
MIN
TYP
MAX
MIN
TYP
TPS22902B (1)
MAX
MIN
TYP
96
96
471
CL = 1 µF
116
116
527
CL = 3.3 µF
135
135
587
CL = 0.1 µF
39
10
10
317
62
61
CL = 3.3 µF
1110
210
199
CL = 0.1 µF
62
62
324
CL = 1 µF
69
69
325
CL = 3.3 µF
81
81
350
CL = 0.1 µF
109
17
20
CL = 1 µF
995
163
175
3650
587
523
CL = 1 µF
CL = 3.3 µF
(1)
TPS22902 (1)
TPS22901
MAX
UNIT
µs
µs
µs
µs
RL_CHIP = 120 Ω
Copyright © 2008–2009, Texas Instruments Incorporated
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SWITCHING CHARACTERISTICS
VIN = 1.8 V, TA = 25°C (unless otherwise noted)
PARAMETER
tON
tOFF
tr
Turn-ON time
Turn-OFF time
VOUT rise time
TEST CONDITIONS
RL = 500 Ω
MIN
RL = 500 Ω
(1)
VOUT fall time
RL = 500 Ω
MAX
MIN
TYP
MAX
MIN
TYP
61
61
302
CL = 1 µF
72
72
335
CL = 3.3 µF
83
83
367
CL = 0.1 µF
38
8
8
317
49
49
CL = 3.3 µF
1135
169
167
CL = 0.1 µF
40
40
220
CL = 1 µF
45
45
220
CL = 3.3 µF
53
53
235
CL = 0.1 µF
tf
TYP
TPS22902B (1)
CL = 0.1 µF
CL = 1 µF
RL = 500 Ω
TPS22902 (1)
TPS22901
111
15
15
CL = 1 µF
1020
140
159
CL = 3.3 µF
3700
517
481
MAX
UNIT
µs
µs
µs
µs
RL_CHIP = 120 Ω
SWITCHING CHARACTERISTICS
VIN = 2.5 V, TA = 25°C (unless otherwise noted)
PARAMETER
tON
tOFF
tr
Turn-ON time
Turn-OFF time
VOUT rise time
TEST CONDITIONS
RL = 500 Ω
RL = 500 Ω
(1)
6
VOUT fall time
RL = 500 Ω
TYP
MAX
MIN
TYP
MAX
MIN
TYP
45
45
223
CL = 1 µF
53
53
246
CL = 3.3 µF
61
61
268
CL = 0.1 µF
38
7
7
314
46
47
CL = 3.3 µF
1140
161
158
CL = 0.1 µF
32
32
175
CL = 1 µF
35
35
175
CL = 3.3 µF
41
41
187
CL = 0.1 µF
tf
MIN
TPS22902B (1)
CL = 0.1 µF
CL = 1 µF
RL = 500 Ω
TPS22902 (1)
TPS22901
113
14
18
CL = 1 µF
1040
139
185
CL = 3.3 µF
3795
516
471
MAX
UNIT
µs
µs
µs
µs
RL_CHIP = 120 Ω
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TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
SWITCHING CHARACTERISTICS
VIN = 3 V, TA = 25°C (unless otherwise noted)
PARAMETER
tON
tOFF
tr
Turn-ON time
Turn-OFF time
VOUT rise time
TEST CONDITIONS
RL = 500 Ω
RL = 500 Ω
RL = 500 Ω
MIN
(1)
VOUT fall time
RL = 500 Ω
TYP
MAX
MIN
TYP
TPS22902B (1)
MAX
MIN
TYP
CL = 0.1 µF
38
38
191
CL = 1 µF
45
45
211
CL = 3.3 µF
53
53
231
CL = 0.1 µF
38
7
7
CL = 1 µF
320
46
46
CL = 3.3 µF
1145
53
156
CL = 0.1 µF
28
28
159
CL = 1 µF
31
31
160
CL = 3.3 µF
37
37
170
CL = 0.1 µF
tf
TPS22902 (1)
TPS22901
114
14
17
CL = 1 µF
1045
139
160
CL = 3.3 µF
3815
509
473
MAX
UNIT
µs
µs
µs
µs
RL_CHIP = 120 Ω
SWITCHING CHARACTERISTICS
VIN = 3.6 V, TA = 25°C (unless otherwise noted)
PARAMETER
tON
tOFF
tr
Turn-ON time
Turn-OFF time
VOUT rise time
TEST CONDITIONS
RL = 500 Ω
RL = 500 Ω
RL = 500 Ω
(1)
VOUT fall time
RL = 500 Ω
MIN
TYP
MAX
MIN
TYP
TPS22902B (1)
MAX
MIN
TYP
CL = 0.1 µF
33
33
166
CL = 1 µF
39
39
183
CL = 3.3 µF
46
46
201
CL = 0.1 µF
38
7
7
322
46
45
CL = 3.3 µF
1145
156
155
CL = 0.1 µF
25
25
146
CL = 1 µF
28
28
146
CL = 3.3 µF
34
34
156
CL = 1 µF
CL = 0.1 µF
tf
TPS22902 (1)
TPS22901
116
14
17
CL = 1 µF
1060
139
161
CL = 3.3 µF
3840
512
475
MAX
UNIT
µs
µs
µs
µs
RL_CHIP = 120 Ω
Copyright © 2008–2009, Texas Instruments Incorporated
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TYPICAL CHARACTERISTICS
TPS22901, TPS22902, TPS22902B
1.0
0.9
0.8
ON-State Resistance, rON (Ω)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3
Input Voltage, VIN (V)
Figure 2. rON vs VIN
100
75
90
80
70
Voltage Drop (mV)
ON-State Resistance, rON (mΩ)
70
65
60
Vdrop = 1.0 V
60
Vdrop = 1.2 V
50
Vdrop = 1.8 V
Vdrop = 2.5 V
40
Vdrop = 3.3 V
30
20
55
10
0
50
–40
25
Temperature(°C)
85
Figure 3. rON vs Temperature (VIN = 3.3 V)
8
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0.00
0.05
0.10
0.15
0.20
0.25
0.30
Load Current (A)
0.35
0.40
0.45
0.50
Figure 4. Voltage Drop vs. Load Current
Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS22901 TPS22902 TPS22902B
TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
TYPICAL CHARACTERISTICS (continued)
200
250
180
200
Quiescent Current, IIN (nA)
Quiescent Current, IIN (nA)
160
140
150
120
100
100
80
60
50
40
20
0
0.5
0
1.0
1.5
2.0
2.5
3.0
Input Voltage, VIN(V)
3.5
–40
4.0
Figure 5. Quiescent Current vs VIN (VON = VIN, IOUT = 0)
25
Temperature(°C)
85
Figure 6. Quiescent Current vs Temperature (VIN = 3.3 V,
IOUT = 0)
120
250
225
200
100
IIN(OFF) Current (nA)
IIN(OFF) Current (nA)
175
80
60
150
125
100
75
40
50
20
0
0.5
25
0
1.0
1.5
2.0
2.5
Input Voltage, VIN(V)
3.0
Figure 7. IIN(OFF) vs VIN (VON = 0 V)
Copyright © 2008–2009, Texas Instruments Incorporated
3.5
4.0
–40
25
Temperature(°C)
85
Figure 8. IIN(OFF) vs Temperature (VIN = 3.3 V)
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TYPICAL CHARACTERISTICS (continued)
250
120
225
200
IIN (Leakage) Current (nA)
IIN (Leakage) Current (nA)
100
80
60
40
175
150
125
100
75
50
20
25
0
0.5
0
1.0
1.5
2.0
2.5
3.0
3.5
–40
4.0
25
85
Temperature (°C)
Input Voltage, VIN (V)
Figure 9. IIN(Leakage) vs VIN (IOUT = 0)
Figure 10. IIN (Leakage) vs Temperature (VIN = 3.3 V)
4.0
VIN = 3.6 V
3.5
VIN = 3.3 V
3.0
VIN = 3 V
VIN = 2.5 V
VOUT (V)
2.5
2.0
VIN = 1.8 V
VIN = 1.5 V
1.5
VIN = 1.2 V
1.0
VIN = 1.1 V
0.5
0.0
–0.5
0.3
0.4
0.5
0.6
Input Voltage, VON (V)
0.7
0.8
Figure 11. ON-Input Threshold
10
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www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
TYPICAL CHARACTERISTICS (continued)
TPS22901
42
130
VIN = 3.3 V
CL = 0.1 µF
RL = 500 Ω
120
40
110
100
38
80
VIN = 3.3 V
CL = 0.1 µF
RL = 500 Ω
70
60
50
40
tON/tOFF (µs)
trise/tfall (µs)
tOFF
tfall
90
36
34
tON
trise
32
30
20
30
10
–50 –40 –30 –20 –10
0
10 20 30 40
Temperature (°C)
50
60
70
80
90 100
28
–50 –40 –30 –20 –10
Figure 12. trise/tfall vs Temperature
0
10 20 30 40
Temperature (°C)
50
60
70
80
90 100
Figure 13. tON/tOFF vs Temperature
TPS22902
40
30
28
35
tON
26
trise
30
VIN = 3.3 V
CL = 0.1 µF
RL = 500 Ω
22
20
18
25
VIN = 3.3 V
CL = 0.1 µF
RL = 500 Ω
20
15
tfall
16
tON/tOFF (µs)
trise/tfall (µs)
24
tOFF
14
10
12
5
10
–50 –40 –30 –20 –10
0
10 20 30 40
Temperature (°C)
50
60
70
Figure 14. trise/tfall vs Temperature
Copyright © 2008–2009, Texas Instruments Incorporated
80
90 100
0
–50 –40 –30 –20 –10
0
10 20 30 40
Temperature (°C)
50
60
70
80
90 100
Figure 15. tON/tOFF vs Temperature
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TYPICAL CHARACTERISTICS (continued)
TPS22902B
170
160
150
140
130
trise
120
trise/tfall (µs)
100
90
tON/tOFF (µs)
VIN = 3.3 V
CL = 0.1 µF
RL = 500 Ω
110
80
70
60
50
40
tfall
30
20
10
0
–50
–35
–20
–5
10
25
40
Temperature (°C)
55
70
Figure 16. trise/tfall vs Temperature
12
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85
100
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
–50
tON
VIN = 3.3 V
CL = 0.1 µF
RL = 500 Ω
tOFF
–35
–20
–5
10
25
40
Temperature (°C)
55
70
85
100
Figure 17. tON/tOFF vs Temperature
Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS22901 TPS22902 TPS22902B
TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
TYPICAL CHARACTERISTICS (continued)
IOUT
6.00
5.00
3.00
VON
2.00
1.00
0.00
–1.00
–2.00
Output Current (mA)
4.00
–3.00
CL = 0.1 µF
RL = 500 Ω
VIN = 3.3 V
–4.00
–5.00
–6.00
–7.00
–8.00
0
50
100
150
200
250
Time (µs)
300
350
400
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
–10
450
400
300
250
200
VON
50
0.0
–50
–100
–150
CL = 0.1 µF
RL = 11 Ω
VIN = 3.3 V
8.00
7.00
IOUT
6.00
5.00
3.00
VON
2.00
1.00
0.005
0.00
–1.00
–2.00
Output Current (mA)
4.00
–3.00
CL = 3.3 µF
RL = 500 Ω
VIN = 3.3 V
–4.00
–5.00
–6.00
–7.00
–8.00
0
50
100
150
200
250
Time (µs)
300
350
400
10
3.50
3.00
IOUT
2.50
VON
1.50
1.00
0.50
0.00
–0.50
–1.00
–1.50
CL = 0.1 µF
RL = 500 Ω
VIN = 1.2 V
–2.00
–2.50
–3.00
–3.50
–4.00
100
150
200
250
Time (µs)
300
350
Figure 22. tON Response
Copyright © 2008–2009, Texas Instruments Incorporated
400
450
Output Current (mA)
2.00
50
20
30
40
50
Time (µs)
60
70
80
90
400
350
IOUT
300
250
200
VON
150
100
50
0.0
–50
–100
–150
CL = 3.3 µF
RL = 11 Ω
VIN = 3.3 V
–200
–250
–300
–350
–400
0
50
100
150
200
250
Time (µs)
300
350
400
450
Figure 21. tON Response
4.00
0
–300
–400
0
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
–50
450
Control Input Voltage (V)
Control Input Voltage (V)
–50
–250
–350
Figure 20. tON Response
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
–200
Figure 19. tON Response
Control Input Voltage (V)
Control Input Voltage (V)
–50
150
100
Figure 18. tON Response
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
350
IOUT
Output Current (mA)
7.00
Output Current (mA)
–50
8.00
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
–50
199
180
160
140
120
100
80
60
40
20
0.0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
IOUT
VON
CL = 0.1 µF
RL = 11 Ω
VIN = 1.2 V
0
50
100
150
200
250
Time (µs)
300
350
400
Output Current (mA)
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
Control Input Voltage (V)
Control Input Voltage (V)
TPS22901 and TPS22902
450
Figure 23. tON Response
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13
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SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
–50
4.00
3.50
3.00
IOUT
2.50
1.50
VON
1.00
0.50
0.00
–0.50
–1.00
Output Current (mA)
2.00
–1.50
CL = 3.3 µF
RL = 500 Ω
VIN = 1.2 V
–2.00
–2.50
–3.00
–3.50
–4.00
0
50
100
150
200
250
Time (µs)
300
350
400
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
–50
450
199
180
160
140
120
100
80
60
40
20
0.0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
IOUT
VON
CL = 3.3 µF
RL = 11 Ω
VIN = 1.2 V
0
50
100
Figure 24. tON Response
150
200
250
Time (µs)
300
350
400
Output Current (mA)
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
Control Input Voltage (V)
Control Input Voltage (V)
TYPICAL CHARACTERISTICS (continued)
450
Figure 25. tON Response
TPS22901
–50
2.5
9.00
2.2
2.0
1.8
1.6
1.4
1.2
1.0
800
600
400
200
0.0
–200
–400
–600
–800
–1.0
–1.2
–1.5
8.00
7.00
5.00
4.00
3.00
2.00
1.00
VON
0.00
–1.00
–2.00
–3.00
–4.00
–5.00
–6.00
0
50
100
150
200
250
Time (µs)
300
350
Submit Documentation Feedback
400
450
Output Current (mA)
6.00
IOUT
Figure 26. tOFF Response
14
10.00
–50
499
CL = 0.1 µF
RL = 11 Ω
VIN = 3.3 V
450
400
350
300
IOUT
250
200
150
100
VON
50
0.00
Output Current (mA)
CL = 0.1 µF
RL = 500 Ω
VIN = 3.3 V
2.2
2.0
1.8
1.6
1.4
1.2
1.0
800
600
400
200
0.0
–200
–400
–600
–800
–1.0
–1.2
–1.5
Control Input Voltage (V)
Control Input Voltage (V)
2.5
–50
–150
–200
–250
–300
0
50
100
150
200
250
Time (µs)
300
350
400
450
Figure 27. tOFF Response
Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS22901 TPS22902 TPS22902B
TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
TYPICAL CHARACTERISTICS (continued)
2.5
9.00
2.2
2.0
1.8
1.6
1.4
1.2
1.0
800
600
400
200
0.0
–200
–400
–600
–800
–1.0
–1.2
–1.5
8.00
7.00
5.00
IOUT
4.00
3.00
2.00
1.00
VON
0.00
Output Current (mA)
6.00
–1.00
–2.00
–3.00
–4.00
–5.00
–6.00
10
20
30
40
50
Time (µs)
60
70
80
–50
90
5.00
2.5
4.50
2.2
2.0
1.8
1.6
1.4
1.2
1.0
800
600
400
200
0.0
–200
–400
–600
–800
–1.0
–1.2
–1.5
4.00
3.50
2.50
2.00
IOUT
1.50
500
VON
0.00
Output Current (mA)
3.00
–500
Control Input Voltage (V)
Control Input Voltage (V)
–50
–1.00
–1.50
–2.00
–2.50
–3.00
0
50
100
150
200
250
Time (µs)
300
350
250
200
400
–5.0
450
100
VON
50
0.00
–50
–150
–200
–250
–300
0
50
100
5.00
2.5
4.50
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
–0.8
–1.0
–1.2
–1.5
4.00
3.50
2.50
2.00
IOUT
1.50
1.00
0.50
VON
0.00
–0.50
–1.00
–1.50
–2.00
–2.50
–3.00
1.0
2.0
3.0
4.0
5.0
Time (ms)
6.0
7.0
Figure 32. tOFF Response
Copyright © 2008–2009, Texas Instruments Incorporated
8.0
9.0
Output Current (mA)
3.00
Control Input Voltage (V)
Control Input Voltage (V)
CL = 3.3 µF
RL = 500 Ω
VIN = 1.2 V
0
150
200
250
Time (µs)
300
350
400
450
CL = 0.1 µF
RL = 11 Ω
VIN = 1.2 V
IOUT
VON
0
5.0
10.0
15.0
20.0 25.0
Time (µs)
30.0
35.0
40.0
249
220
200
180
160
140
120
100
80
60
40
20
0.00
–20
–40
–60
–80
–100
–120
–150
45.0
Figure 31. tOFF Response
2.5
–1.0
150
IOUT
Figure 30. tOFF Response
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
–0.8
–1.0
–1.2
–1.5
350
Figure 29. tOFF Response
CL = 0.1 µF
RL = 500 Ω
VIN = 1.2 V
0.8
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
–0.8
–1.0
–1.2
–1.5
400
300
Figure 28. tOFF Response
2.5
2.2
2.0
1.8
1.6
1.4
1.2
1.0
450
Output Current (mA)
0
499
CL = 3.3 µF
RL = 11 Ω
VIN = 3.3 V
–50
249
220
200
180
160
140
120
100
80
60
40
20
0.00
–20
–40
–60
–80
–100
–120
–150
CL = 3.3 µF
RL = 11 Ω
VIN = 1.2 V
IOUT
VON
0
50
100
150
200
250
Time (µs)
300
350
400
Output Current (mA)
–10
10.00
Output Current (mA)
CL = 3.3 µF
RL = 500 Ω
VIN = 3.3 V
2.2
2.0
1.8
1.6
1.4
1.2
1.0
800
600
400
200
0.0
–200
–400
–600
–800
–1.0
–1.2
–1.5
Control Input Voltage (V)
Control Input Voltage (V)
2.5
450
Figure 33. tOFF Response
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TPS22901, TPS22902, TPS22902B
SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
7.00
CL = 0.1 µF
RL = 500 Ω
VIN = 3.3 V
6.00
5.00
3.00
2.00
1.00
0.00
–1.00
–2.00
Output Current (mA)
4.00
VON
–3.00
–4.00
–5.00
–6.00
–7.00
–8.00
0
50
100
150
200
250
Time (µs)
300
350
400
400
150
100
50
0.0
–50
–100
–150
–200
–250
–300
–350
–400
0
10
6.00
5.00
3.00
2.00
1.00
0.00
–1.00
–2.00
Output Current (mA)
4.00
–3.00
Control Input Voltage (V)
Control Input Voltage (V)
7.00
CL = 3.3 µF
RL = 500 Ω
VIN = 3.3 V
VON
–4.00
–5.00
–6.00
–7.00
–8.00
–200
0
200
400
600
800 1000
Time (µs)
1200
1400
1600
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
4.00
3.00
2.50
1.50
1.00
500
0.00
–500
–1.00
–1.50
–2.00
–2.50
–3.00
–3.50
–4.00
50
100
150
200
250
Time (µs)
300
350
Submit Documentation Feedback
400
450
Output Current (mA)
2.00
Figure 38. tOFF Response
16
3.50
VON
0
60
70
80
90
350
CL = 3.3 µF
RL = 11 Ω
VIN = 3.3 V
300
250
200
VON
150
100
50
0.0
–50
–100
–150
–200
–250
–300
–350
–400
0
50
100
150
200
250
Time (µs)
300
350
400
450
Figure 37. tOFF Response
Control Input Voltage (V)
Control Input Voltage (V)
–50
40
50
Time (µs)
400
–50
1800
CL = 0.1 µF
RL = 500 Ω
VIN = 1.2 V
IOUT
30
IOUT
Figure 36. tOFF Response
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
20
Figure 35. tOFF Response
8.00
IOUT
250
200
Figure 34. tOFF Response
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
300
VON
–10
450
350
CL = 0.1 µF
RL = 11 Ω
VIN = 3.3 V
IOUT
Output Current (mA)
–50
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
Output Current (mA)
8.00
IOUT
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
–10
200
180
160
140
120
100
80
60
40
20
0.0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
CL = 0.1 µF
RL = 11 Ω
VIN = 1.2 V
IOUT
VON
0
10
20
30
40
50
Time (µs)
60
70
80
Output Current (mA)
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
Control Input Voltage (V)
Control Input Voltage (V)
TPS22902
90
Figure 39. tOFF Response
Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS22901 TPS22902 TPS22902B
TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
IOUT
–200
3.50
3.00
2.50
2.00
VON
1.50
1.00
0.50
0.00
–0.50
–1.00
–1.50
–2.00
–2.50
–3.00
–3.50
–4.00
0
200
400
600
800 1000
Time (µs)
1200
1400
1600
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
1800
–50
200
180
160
140
120
100
80
60
40
20
0.0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
CL = 3.3 µF
RL = 11 Ω
VIN = 1.2 V
IOUT
VON
0
50
100
Figure 40. tOFF Response
150
200
250
Time (µs)
300
350
400
Output Current (mA)
4.00
CL = 3.3 µF
RL = 500 Ω
VIN = 1.2 V
Output Current (mA)
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.20
–1.40
–1.60
–1.80
–2.00
Control Input Voltage (V)
Control Input Voltage (V)
TYPICAL CHARACTERISTICS (continued)
450
Figure 41. tOFF Response
TPS22902B
1.0
VON
0.9
0.01
0.6
IOUT
0.05
0.5
0.4
0.3
0.2
0.1
0.00
0.0
–0.1
–0.2
Output Current (A)
0.7
Control Input Voltage (V)
0.8
CL = 0.1 µF
RL = 11 Ω
VIN = 3.3 V
IOUT
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
0.32
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
–0.02
VON
Output Current (A)
CL = 0.1 µF
RL = 500 Ω
VIN = 3.3 V
1.1
Control Input Voltage (V)
0.35
3.5
1.2
–0.3
–0.4
–500
–200
0.0
200
400
600
800
1000
1200
0.00
1500
–0.05
–0.5
–1000
–500
0.0
500
Time (µs)
Figure 42. tON Response
Copyright © 2008–2009, Texas Instruments Incorporated
1000
Time (µs)
1500
2000
2500
3000
Figure 43. tON Response
Submit Documentation Feedback
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17
TPS22901, TPS22902, TPS22902B
SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
1.0
VON
0.9
0.01
IOUT
0.6
0.05
0.5
0.4
0.3
0.2
Output Current (A)
0.7
Control Input Voltage (V)
0.8
0.1
0.00
0.0
–0.1
–0.2
CL = 3 µ F
RL = 11 Ω
VIN = 3.3 V
IOUT
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
0.32
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
–0.02
VON
Output Current (A)
CL = 3 µ F
RL = 500 Ω
VIN = 3.3 V
1.1
Control Input Voltage (V)
0.35
3.5
1.2
–0.3
500
1000
Time (µs)
1500
2000
2500
–1000
3000
–500
0.0
Figure 44. tON Response
1.0
VON
0.9
0.01
0.6
0.05
0.5
0.4
0.3
IOUT
0.2
Output Current (A)
0.7
0.1
Control Input Voltage (V)
0.8
Control Input Voltage (V)
1500
2000
2500
3000
0.35
3.5
CL = 0.1 µF
RL = 500 Ω
VIN = 1.2 V
1.1
0.00
0.0
–0.1
–0.2
–0.3
–0.00
–200
0.0
200
400
600
Time (µs)
800
1000
1200
–0.5
–1000
1500
CL = 0.1 µF
RL = 11 Ω
VIN = 1.2 V
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
IOUT
VON
0.32
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
–0.02
–0.05
–500
0.0
Figure 46. tON Response
500
1000
Time (µs)
1500
2000
2500
3000
Figure 47. tON Response
0.35
3.5
1.2
CL = 3 µ F
RL = 500 Ω
VIN = 1.2 V
1.1
1.0
VON
0.9
0.01
0.6
0.05
0.5
0.4
0.3
IOUT
0.2
0.1
0.00
0.0
–0.1
–0.2
Output Current (A)
0.7
Control Input Voltage (V)
0.8
Control Input Voltage (V)
1000
Time (µs)
Figure 45. tON Response
1.2
–0.4
–5000
500
Output Current (A)
0.0
–0.05
–0.5
–0.00
–500
CL = 3 µ F
RL = 11 Ω
VIN = 1.2 V
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
0.32
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
–0.02
IOUT
VON
Output Current (A)
–0.4
–1000
–0.3
–0.4
–1000
–500
0.0
500
1000
Time (µs)
1500
2000
Figure 48. tON Response
18
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2500
–0.00
3000
–0.05
–0.5
–1000
–500
0.0
500
1000
Time (µs)
1500
2000
2500
3000
Figure 49. tON Response
Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS22901 TPS22902 TPS22902B
TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
TYPICAL CHARACTERISTICS (continued)
1.0
VON
0.01
0.6
0.05
0.5
0.4
0.3
IOUT
0.2
Control Input Voltage (V)
0.7
Output Current (A)
Control Input Voltage (V)
0.8
0.1
0.00
0.0
–0.1
–0.2
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
CL = 0.1 µF
RL = 11 Ω
VIN = 3.3 V
IOUT
0.32
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
–0.02
VON
Output Current (A)
CL = 0.1 µF
RL = 500 Ω
VIN = 3.3 V
1.1
0.9
0.35
3.5
1.2
–0.3
0.0
200
400
600
Time (µs)
800
1000
1200
–0.05
–0.5
–0.00
–200
–250
1500
–100
0.0
Figure 50. tOFF Response
400
500
600
750
0.35
3.5
CL = 3 µ F
RL = 500 Ω
VIN = 3.3 V
1.1
1.0
VON
0.01
0.6
0.05
0.5
0.4
0.3
IOUT
0.2
Output Current (A)
0.7
Control Input Voltage (V)
0.8
Control Input Voltage (V)
200
300
Time (µs)
Figure 51. tOFF Response
1.2
0.9
100
0.1
0.00
0.0
–0.1
–0.2
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
CL = 3 µ F
RL = 11 Ω
VIN = 3.3 V
IOUT
0.32
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
–0.02
VON
Output Current (A)
–0.4
–5000
–0.3
0.0
200
400
600
Time (µs)
800
1000
1200
–0.05
–0.5
–0.00
–200
–250
1500
–100
0.0
Figure 52. tOFF Response
400
500
600
750
0.35
3.5
CL = 0.1 µF
RL = 500 Ω
VIN = 1.2 V
1.1
1.0
VON
0.01
0.6
0.05
0.5
0.4
0.3
IOUT
0.2
0.1
0.00
0.0
–0.1
–0.2
Output Current (A)
0.7
Control Input Voltage (V)
0.8
Control Input Voltage (V)
200
300
Time (µs)
Figure 53. tOFF Response
1.2
0.9
100
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
CL = 0.1 µF
RL = 11 Ω
VIN = 1.2 V
0.32
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
–0.02
IOUT
VON
Output Current (A)
–0.4
–5000
–0.3
–0.4
–50
–0.00
–20
0.0
20
40
60
Time (µs)
80
100
Figure 54. tOFF Response
Copyright © 2008–2009, Texas Instruments Incorporated
120
150
–0.05
–0.5
–250
–100
0.0
100
200
300
Time (µs)
400
500
600
750
Figure 55. tOFF Response
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TPS22901, TPS22902, TPS22902B
SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
1.0
VON
0.01
0.6
0.05
0.5
0.4
0.3
0.2
IOUT
0.1
0.00
0.0
–0.1
–0.2
Control Input Voltage (V)
0.7
Output Current (A)
Control Input Voltage (V)
0.8
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
CL = 3 µ F
RL = 11 Ω
VIN = 1.2 V
0.32
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
–0.02
IOUT
VON
Output Current (A)
CL = 3 µ F
RL = 500 Ω
VIN = 1.2 V
1.1
0.9
0.35
3.5
1.2
–0.3
–0.4
–1000
–0.00
–500
0.0
500
1000
Time (µs)
1500
2000
Figure 56. tOFF Response
20
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2500
3000
–0.05
–0.5
–250
–100
0.0
100
200
300
Time (µs)
400
500
600
750
Figure 57. tOFF Response
Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS22901 TPS22902 TPS22902B
TPS22901, TPS22902, TPS22902B
www.ti.com............................................................................................................................................... SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009
PARAMETER MEASUREMENT INFORMATION
VIN
ON
VOUT
(A)
RL
CL
+
–
TPS22901/02
OFF
CIN =1 µF
GND
GND
GND
TEST CIRCUIT
1.8 V
VON
VON
VON/2
VON/2
tr
0V
tf
0V
tON
tOFF
90%
VOUT
VOH
VOUT
VOUT/2
VOUT/2
10%
90%
10%
VOL
tON/tOFF WAVEFORMS
A.
trise and tfall of the control signal is 100 ns.
Figure 58. Test Circuit and tON/tOFF Waveforms
Copyright © 2008–2009, Texas Instruments Incorporated
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TPS22901, TPS22902, TPS22902B
SLVS803B – NOVEMBER 2008 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
APPLICATION INFORMATION
ON/OFF Control
The ON pin controls the state of the switch. Activating ON continuously holds the switch in the on state so long
as there is no fault. ON is active-high and has a low threshold, making it capable of interfacing with low voltage
signals. The ON pin is compatible with standard GPIO logic threshold. It can be used with any microcontroller
with 1.2-V, 1.8-V, 2.5-V or 3.3-V GPIOs.
Input Capacitor
To limit the voltage drop on the input supply caused by transient in-rush currents when the switch turns on into a
discharged load capacitor or short-circuit, a capacitor needs to be placed between VIN and GND. A 1-µF ceramic
capacitor, CIN, place close to the pins is usually sufficient. Higher values of CIN can be use to further reduce the
voltage drop during high current application. When switching heavy loads, it is recommended to have an input
capacitor about 10 times higher than the output capacitor, this in order to avoid excessive voltage drop.
Output Capacitor
Due to the integral body diode in the PMOS switch, a CIN greater than CL is highly recommended. A CL greater
than CIN can cause VOUT to exceed VIN when the system supply is removed. This could result in current flow
through the body diode from VOUT to VIN.
Board Layout
For best performance, all traces should be as short as possible. To be most effective, the input and output
capacitors should be placed close to the device to minimize the effects that parasitic trace inductances may have
on normal and short-circuit operation. Using wide traces for VIN, VOUT, and GND helps minimize the parasitic
electrical effects along with minimizing the case-to-ambient thermal impedance.
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Product Folder Link(s): TPS22901 TPS22902 TPS22902B
PACKAGE OPTION ADDENDUM
www.ti.com
24-Mar-2009
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
TPS22901YFPR
ACTIVE
DSBGA
YFP
4
3000 Green (RoHS &
no Sb/Br)
SNAGCU
Level-1-260C-UNLIM
TPS22902BYFPR
ACTIVE
DSBGA
YFP
4
3000 Green (RoHS &
no Sb/Br)
SNAGCU
Level-1-260C-UNLIM
TPS22902YFPR
ACTIVE
DSBGA
YFP
4
3000 Green (RoHS &
no Sb/Br)
SNAGCU
Level-1-260C-UNLIM
Lead/Ball Finish
MSL Peak Temp (3)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
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In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
D: Max = 790 µm, Min = 730 µm
E: Max = 790 µm, Min = 730 µm
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