S-1701 Datasheet, PDF (52/70 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series
Rev.2.4_00
2. Detector block
(1) Detection voltage vs. Ambient temperature
S-1701xxx15 (−V_DET = 1.5 V)
1.70
1.65
1.60
1.55
+VDET
1.50
1.45
–VDET
1.40
–40 –25
0
25
50
75 85
Ta [°C]
S-1701xxx55 (−V_DET = 5.5 V)
6.2
6.0
5.8
5.6
5.4
5.2
5.0
–40 –25
0
25
Ta [°C]
+VDET
–VDET
50
75 85
(2) Hysteresis width vs. Ambient temperature
S-1701xxx15 (−V_DET = 1.5 V)
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
−40 −25
0
25
50
75 85
Ta [°C]
S-1701xxx55 (−V_DET = 5.5 V)
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
−40 −25
0
25
50
75 85
Ta [°C]
(3) Detector block current consumption vs. Input voltage
S-1701xxx15 (−V_DET = 1.5 V)
4.0
3.5
Ta = 85 °C
25 °C
3.0
2.5
−40 °C
2.0
1.5
S-1701xxx55 (−V_DET = 5.5 V)
4.0
3.5
Ta = 85 °C
3.0
2.5
25 °C
2.0
−40 °C
1.5
1.0
1.0
0.5
0.5
0
0 12 34 567
0
0 12 34 567
VIN [V]
VIN [V]
(4) Nch transistor output current vs. V_DS characteristics
S-1701xxx55 (−V_DET = 5.5 V, Ta = 25 °C)
25
5.0 V
20
4.0 V
15
3.0 V
10
2.0 V
5
VIN = 1.4 V
0
0
1
2
3
4
5
6
V_DS [V]
52
Seiko Instruments Inc.