L5993 STMicroelectronics, L5993 Datasheet - Page 6

• Manufacturer Part Number: L5993
• Description: Switching Converters, Regulators & Controllers Prog Current Mode
• Manufacturer: STMicroelectronics

Specifications of L5993

• Mounting Style: Through Hole
• Package / Case: PDIP-16
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

L5993
Figure 9. Vref SVRR vs. switching frequency.
Figure 11. Output saturation.
Figure 13. Timing resistor vs. switching fre-
6/22
2 .5
1 .5
0 .5
SVRR (dB)
120
5000
2000
1000
80
40
fsw (KHz)
2
1
0
500
200
100
0
50
20
10
1
0
V s at = V [V ]
0.2
quency.
V c c = Vc = 15 V
10
Tj = 25 C
10
10
5 .6nF
0.4
100
Rt (kohm)
Is ink [A ]
fsw (Hz)
Vcc
Tj = 25 C
0 .6
20
2.2nF
= 15V, V15 =0V
1000
0 .8
30
Vcc=15V
Vp-p=1V
10000
1
220pF
100pF
470pF
1 nF
1 .2
40
Figure 10. Output saturation.
Figure 12. UVLO Saturation
Figure 14. Switching frequency vs. tempera-
fsw (KHz)
320
310
300
290
280
16
14
12
10
50
40
30
20
10
Ipin10 [mA]
0
8
6
-50
Vsat = V
0
0
-25
200
beforeturn-on
Vcc < Vccon
0.2
10
ture
[V]
0
400
0.4
25
Vpin10 [mV]
600
Isource [A]
Tj ( C)
0.6
50
Rt= 4.5Kohm, Ct = 1nF
Vcc = 15V, V15=Vref
Vcc = Vc = 15V
Tj = 25 C
800
75
0.8
1,000 1,200 1,400
100
1
125
150
1.2