Datasheet

V
SW
I
L
500 µs/Div
2V/Div
100 mA/Div
V
OUT
1V/Div
EN
1V/Div
V
SW
I
L
500 µs/Div
2V/Div
100 mA/Div
V
OUT
1V/Div
EN
1V/Div
2.5 3.0 3.5 4.0 4.5 5.0 5.5
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
EN THRESHOLDS (V)
VIN (V)
Rising TH -40°C
Falling TH -40°C
Rising TH 25°C
Falling TH 25°C
Rising TH 125°C
Falling TH 125°C
2.5 3.0 3.5 4.0 4.5 5.0 5.5
0
100
200
300
400
500
600
700
800
SOFT START TIME (NO LOAD) (s)
VIN (V)
Vout = -5.0V
Vout = -3.3V
Vout = -2.5V
Vout = -1.5V
Vout = -0.9V
2.5 3.0 3.5 4.0 4.5 5.0 5.5
0
50
100
150
200
250
MAX LOADING (mA)
VIN (V)
VOUT = -5V
VOUT = -3.3V
VOUT = -2.5V
VOUT = -1.5V
VOUT = -0.9V
2.5 3.0 3.5 4.0 4.5 5.0 5.5
460
480
500
520
540
560
580
600
MINIMUM SWITCHING FREQUENCY (kHz)
VIN (V)
Temp = -40°C
Temp = 25°C
Temp = 125°C
www.ti.com Typical Performance Characteristics
Maximum Load Current Minimum Switching Frequency
Enable Thresholds Soft Start Time (No Load)
Soft Start And Soft Off Waveform Soft Start And Soft Off Waveform
V
IN
= 5.0 V, V
OUT
= -5.0 V, No Load V
IN
= 5.0 V, V
OUT
= -5.0 V, Load = 50 Ω
7
SNVU155A–June 2012–Revised April 2013 AN-2264 LMR70503 Demo Board
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