TS3300 Datasheet, PDF (5/14 Pages) Touchstone Semiconductor Inc – 0.6-4.5VIN, 1.8-5.25VOUT, 3.5-uA, Low Input Voltage, High-Efficiency Boost + LDO

TS3300
TYPICAL PERFORMANCE CHARACTERISTICS
VBI = 1.2V, VBO = 3V, V_Bതതത_Eതത_Nത = LOW, IBO = 0A, L = 10µH (LPS4018-103ML), CBO = 22µF, CBI = 22µF, VREGIN = VBO = 3V, VREGOUT = 1.8V,
IREGOUT = 0A, CREGOUT = 10µF unless otherwise noted. Values are at TA = 25°C unless otherwise noted.
Boost Regulator
Efficiency vs Load Current
100
90
1.2VBI to 1.8VBO
Boost Regulator
Maximum Output Current vs VBI
( for VBO to drop 2.5%)
300
80
70
1.2VBI to 3VBO
60
50
40
240
180
VBO =1.8V
120
VBO =3V
30
20
60
10 _{L: LPS4018-103ML}
0
0.01
0.1
1
10
100
IBO - mA
0
0.5
1
1.5
2
2.5
VBI - V
Inductor Peak Current vs
Load Current
1.1
1
0.9
1.2VBI to 3VBO
0.8
0.7
0.6
0.5
1.2VBI to 1.8VBO
0.4
0.3
0.2
0
25
50
75
100
IBO - mA
LDO Dropout Voltage vs
Load Current
0.6
VREGOUT set to 1.8V
0.4
0.2
0
0
40ºC
+85ºC
+25ºC
25
50
75
100
IREGOUT - mA
0.2
0.15
LDO Dropout Voltage vs
Load Current
VREGOUT set to 3V
+85ºC
-40ºC
0.1
0.05
+25ºC
0
0
25
50
75
100
IREGOUT - mA
TS3300DS r1p0
+0.4
LDO Output Voltage Accuracy
vs Load Current
-0.2
-0.8
-1.4
-2
-2.6
-3.2
-3.8
0
25 50 75 100 125 150
IREGOUT - mA
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