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TPS61257YFF Datasheet(PDF) 10 Page - Texas Instruments

Part # TPS61257YFF
Description  3.5-MHz HIGH EFFICIENCY STEP-UP CONVERTER IN CHIP SCALE PACKAGING
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS61257YFF Datasheet(HTML) 10 Page - Texas Instruments

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4.365
4.41
4.455
4.5
4.545
V
= 4.5 V
PWM Operation
O
V = 4.5 V
I
V = 2.5 V
I
V = 2.7 V
I
V = 3 V
I
V = 3.3 V
I
V = 3.6 V
I
500
700
900
1100
1300
1500
1700
1900
I
- Output Current - mA
O
V = 4.2 V
I
4.95
5
5.05
5.1
5.15
0.1
1
10
100
1000
I
- Output Current - mA
O
V = 5 V
I
V = 2.5 V
I
V = 4.5 V
I
V
= 5 V (TPS61256)
PFM/PWM Operation
O
V = 3.6 V
I
4.75
4.8
4.85
4.9
4.95
5
5.05
5.1
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000
I - Output Current - mA
O
V = 4.2 V
I
V = 4.5 V
I
V = 3.3 V
I
V = 3.6 V
I
V = 5 V (TPS61253),
I = Pulse Operation (t
= 20 ms,
= 10%),
PWM Operation
O
O
pulse
d
V = 3 V
I
4.8
4.85
4.9
4.95
5
5.05
500
700
900
1100
1300
1500
1700
1900
I
- Output Current - mA
O
V = 4.5 V
I
V = 2.5 V
I
V = 2.7 V
I
V = 3 V
I
V = 3.3 V
I
V = 3.6 V
I
V = 4.2 V
I
V
= 5 V (TPS61256)
PWM Operation
O
TPS61253, TPS61254, TPS61256, TPS61258
SLVSAG8B – SEPTEMBER 2011 – REVISED MAY 2012
www.ti.com
DC OUTPUT VOLTAGE
DC OUTPUT VOLTAGE
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
Figure 9.
Figure 10.
DC OUTPUT VOLTAGE
DC OUTPUT VOLTAGE
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
Figure 11.
Figure 12.
10
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Copyright © 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS61253 TPS61254 TPS61256 TPS61258


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