TS3300 Datasheet, PDF (4/12 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
V_BI = 1.2V, V_BO = 3V, V_BEN = GND, I_BO = 0A, L = 10µH (LPS4018-103ML), C_BI=C_BO = 22µF, V_{SW EN}=V_{REG FB}=V_{REG EN}=V_REGIN=V_BO,
I_REGOUT=0A, unless otherwise specified. Values are at T_A = 25°C unless otherwise specified.
Boost Regulator
Efficiency vs Load Current
100
90
1.2V_BI to 1.8V_BO
Boost Regulator
Maximum Output Current vs V_BI
( for V_BO to drop 2.5%)
300
80
240
70
1.2V_BI to 3V_BO
60
180
V_BO =1.8V
V_BO =3V
50
40
120
30
20
60
10 _{L: LPS4018-103ML}
0
0.01
0.1
1
10
100
I_BO - mA
0
0.5
1
1.5
2
2.5
V_BI - V
Boost Minimum Start-Up Voltage
vs Source Resistance
1.2
1.1
1
-40ºC
+85ºC
0.9
Boost Minimum Start-Up Voltage
vs Load Current
1.8
L: 22µH (LPS4018-223ML)
1.6
1.4
0.8
0.7
0.6
0.5
0
+25ºC
L: 10µH (LPS4018-103ML)
5 10 15 20 25 30
SOURCE RESISTANCE- Ω
1.2
1
0.8
03
6 9 12 15 18
I_BO - mA
Inductor Peak Current vs
Load Current
1.1
1
0.9
1.2V_BI to 3V_BO
0.8
0.7
0.6
0.5
1.2V_BI to 1.8V_BO
0.4
0.3
0.2
0
25
50
75
100
I_BO - mA
Page 4
TS3300 Rev. 1.0