LT1033_15 Datasheet, PDF (4/12 Pages) Linear Technology – 3A Negative Adjustable Regulator

LT1033
TYPICAL PERFORMANCE CHARACTERISTICS
Ripple Rejection
100
80
C_ADJ = 10µF
Ripple Rejection
100
80
60
60
C_ADJ = 0
C_ADJ = 10µF
C_ADJ = 0
40
40
V_IN – V_OUT = 5V
20 _{IL = 500mA}
f = 120Hz
T_J = 25°C
0
0
–10
–20
–30
–40
OUTPUT VOLTAGE (V)
LT1033 • G05
20
V_IN = –15V
V_OUT = –10V
I_L = 500mA
T_J = 25°C
0
10
100 1k
10k
FREQUENCY (Hz)
100k 1M
LT1033 • G06
Output Impedance
10¹
V_IN = –15V
V_OUT = –10V
I_L = 500mA
10^{0 C}L ^{= 1µF}
T_J = 25°C
10^–1
C_ADJ = 0
10^–2
C_ADJ = 10µF
10^–3
10
100 1k 10k 100k 1M
FREQUENCY (Hz)
LT1033 • G08
Line Transient Response
0.8
0.6
0.4
C_ADJ = 0
0.2
0
C_ADJ = 10µF
–0.2
–0.4
0
V_OUT = –10V
I_L = 50mA
–0.5
T_J = 25°C
C_L = 1µF
–1.0
0
10
20
30
40
TIME (µs)
LT1033 • G09
Load Regulation*
0.8
0.4
0
–0.4
–0.8
0
0.8 1.6 2.4 3.2 4.0
OUTPUT CURRENT (A)
*THE LT1033 HAS LOAD REGULATION COMPENSATION
WHICH MAKES THE TYPICAL UNIT READ CLOSE TO ZERO.
THIS BAND REPRESENTS THE TYPICAL PRODUCTION SPREAD
LT1033 • G11
Guaranteed Minimum
Output Current
5
4
3
2
1
0
0 5 10 15 20 25 30 35
INPUT-OUTPUT DIFFERENTIAL (V)
LT1033 • G12
4
Ripple Rejection
100
80
C_ADJ = 10µF
60
C_ADJ = 0
40
V_IN = –15V
20 _{VOUT = –10V}
f = 120Hz
T_J = 25°C
0
0.01
0.1
1
OUTPUT CURRENT (A)
10
LT1033 • G07
Load Transient Response
0.6
0.4
C_ADJ = 0
0.2
0
–0.2
C_ADJ = 10µF
–0.4
–0.6
0
V_IN = –15V
–0.5
V_OUT = –10V
I_NL = 50mA
–1.0
T_J = 25°C
C_L = 1µF
–1.5
0
10
20
30
40
TIME (µs)
LT1033 • G10
Adjustment Current
80
75
70
65
60
55
50
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
LT1033 • G13
1033fc