Datasheet

LTC3108-1
5
31081fb
For more information www.linear.com/LTC3108-1
LDO Load Regulation
Typical perForMance characTerisTics
I
VOUT
vs dT and TEG Size,
1:100 Ratio
Resonant Switching Waveforms
T
A
= 25°C, unless otherwise noted.
LDO Dropout Voltage
I
VOUT
vs V
IN
and Source Resistance,
1:50 Ratio
I
VOUT
vs V
IN
and Source Resistance,
1:100 Ratio
V
IN
OPEN-CIRCUIT (mV)
I
VOUT
(µA)
100
10
1000
10000
0
31081 G06
0
200 300 500
100
400 600 700 800
1Ω
2Ω
5Ω
10Ω
C1 = 4.7nF
V
IN
OPEN-CIRCUIT (mV)
I
VOUT
(µA)
100
1000
10
31081 G07
0
100 200 300 400 500
1Ω
2Ω
5Ω
10Ω
C1 = 1nF
dT ACROSS TEG (°C)
I
VOUT
(µA)
100
10
1000
10000
0
31081 G08
0.1
10
1
100
V
OUT
= 0V
40mm
TEG
15mm
TEG
1:50 RATIO
1:100 RATIO
1:50 RATIO
1:100 RATIO
LDO LOAD (mA)
0
–1.00
DROP IN VLDO (%)
–0.75
–0.50
0.5
1
1.5 2 32.5 3.5
–0.25
0.00
4
31081 G10
LDO LOAD (mA)
0
0.00
DROPOUT VOLTAGE (V)
0.04
0.08
0.12
0.5
1
1.5 2 32.5 3.5
0.16
0.20
0.02
0.06
0.10
0.14
0.18
4
31081 G11
10µs/DIV
C1 PIN
2V/DIV
C2 PIN
2V/DIV
SW PIN
50mV/
DIV
31081 G09
V
IN
= 20mV
1:100 RATIO TRANSFORMER