LTC3109
TYPICAL PERFORMANCE CHARACTERISTICS T = 251C, unless otherwise noteꢂ.
ꢃ
VꢃUX Clamp Voltage
vs Shunt Current
PVOUT vs ꢂT anꢂ TEG Size,
ꢀ:ꢀ33 Ratio, VOUT = 5V
VOUT anꢂ VLDO vs Temperature
5.5
5.4
5.3
5.2
5.1
5.0
1.00
3.0
2.5
0.75
0.50
FERROTEC 9500/127/100B
40mm
VLDO
2.0
1.5
0.25
0
V
OUT
–0.25
–0.50
–0.75
1.0
0.5
0
FERROTEC 9501/071/040B
22mm
–1.00
0
3
6
9
12
15
–25
0
50
75 100 125
0
1
2
3
4
5
6
7
8
9
10
–50
25
dT (°K)
VAUX SHUNT CURRENT (mA)
TEMPERATURE (°C)
3109 G07
3109 G06
3109 G08
Resonant SwitAhing Waveforms
LDO Loaꢂ Regulation
LDO Dropout Voltage
0.00
–0.25
–0.50
–0.75
–1.00
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
C1 A OR B
2V/DIV
C2 A OR B
2V/DIV
3109 G9
20μs/DIV
0
0.5
1.5
2
2.5
3
3.5
4
1
0
0.5
1.5
2
2.5
3
3.5
4
1
LDO LOAD (mA)
LDO LOAD (mA)
3109 G10
3109 G11
VOUT anꢂ PGOOD Response
During a Step Loaꢂ
Start-Up Voltage SequenAing
VOUT Ripple
V
= 50mV
50mA LOAD STEP
OUT
30μA LOAD
OUT
IN
1:100 RATIO TRANSFORMER
C
= 220μF
C
= 220μF
C
C
C
= 220μF
OUT
STORE
CH1
VSTORE
1V/DIV
= 470μF
= 2.2μF
LDO
CH2
OUT
1V/DIV
20mV/
DIV
V
CH2, V
OUT
1V/DIV
CH3, V
1V/DIV
CH1
PGD
1V/DIV
LDO
3109 G12
3109 G13
3109 G14
10SEC/DIV
5ms/DIV
100ms/DIV
3109fa
5
Linear Systems [ Linear Systems ]
