LT3015 LINER [Linear Technology], LT3015 Datasheet - Page 12

• Manufacturer Part Number: LT3015
• Description: 1.5A, Low Noise, Negative Linear Regulator
• Manufacturer: LINER [Linear Technology]

LT3015 Series
TYPICAL PERFORMANCE CHARACTERISTICS
200µV/DIV
12
R
L
1V/DIV
2V/DIV
= 3.3
V
V
SHDN
V
OUT
250
225
200
175
150
125
100
OUT
75
50
25
0
10p
RMS Output Noise
vs Feedforward Capacitor (C
LT3015 10Hz to 100kHz Output
Noise, C
C
V
I
C
SHDN Transient Response,
I
C
V
C
L
L
V
OUT
OUT
FF
OUT
OUT
FF
= –1.5A
OUT
= –1.5A, C
= 10nF
= 10nF
FEEDFORWARD CAPACITANCE, C
= 10µF
= –5V
= 10µF
= –5V
100p
= –1.22V
FF
= 10nF
1n
FF
250µs/DIV
1ms/DIV
= 10nF
I
10n
f = 10Hz TO 100kHz
FB-DIVIDER
V
OUT
C
OUT
100n
I
T
L
= –5V
FF
= 100µA
J
= –1.5A
FF
= 10µF
= 25°C
(F)
3015 G46
3015 G49
)
3015 G52
1µ
100µV/DIV
R
L
1V/DIV
2V/DIV
V
= 1k
0.001
V
SHDN
V
0.01
OUT
OUT
100
1.0
0.1
10
100p
Start-Up Time vs C
LT3015 10Hz to 100kHz Output
Noise
C
V
I
SHDN Transient Response,
I
C
V
C
L
L
I
I
T
OUT
OUT
OUT
OUT
FF
V
L
FB-DIVIDER
J
= –1.5A
OUT
= –5mA, C
= –1.5A
V
= 0
= 25°C
OUT
FEEDFORWARD CAPACITOR, C
= 10µF
= –1.22V
= 10µF
= –5V
= –1.22V
= –15V
= 100µA
1n
FF
25ms/DIV
1ms/DIV
V
= 0
OUT
FF
= –3V
V
V
OUT
10n
OUT
= –5V
= –12V
FF
(F)
T
3015 G53
3015 G50
3015 G47
A
100n
= 25°C, unless otherwise noted.
100mV/DIV
200µV/DIV
R
L
1A/DIV
1V/DIV
2V/DIV
= 3.3
V
V
V
SHDN
V
I
OUT
OUT
OUT
OUT
C
V
I
C
LT3015 10Hz to 100kHz Output
Noise, C
SHDN Transient Response,
I
C
V
V
∆I
C
V
C
LT3015 Transient Response,
C
L
L
OUT
OUT
FF
OUT
OUT
IN
OUT
OUT
FF
OUT
= –1.5A
OUT
= –1.5A, C
= 0
= –3V
= 0
= 10µF
= –5V
= 10µF
= –1.22V
= 10µF
= –5V
= –50mA TO –1.5A
= 10µF
FF
= 0
FF
250µs/DIV
1ms/DIV
25µs/DIV
= 0
3015 G48
3015 G51
3015 G54
3015fb