SC621A
Typical Characteristics (continued)
Flash Current — 300mA
390
V
OUT
=3.58V at 25°C
490
Flash Current — 400mA
V
OUT
=3.39V at 25°C
360
460
Flash Current (mA)
Flash Current (mA)
330
430
300
400
270
370
240
340
310
4.2
210
4.2
4.0
3.8
3.6
V
IN
(V)
3.4
3.2
3.0
4.0
3.8
3.6
V
IN
(V)
3.4
3.2
3.0
Spotlight Current — 50mA
53
V
OUT
=3.02V at 25°C
340
Spotlight Current — 250mA
V
OUT
=3.50V at 25°C
52
Spotlight Current (mA)
Spotlight Current (mA)
310
51
280
50
250
49
220
48
47
4.2
190
160
4.2
4.0
3.8
3.6
V
IN
(V)
3.4
3.2
3.0
4.0
3.8
3.6
V
IN
(V)
3.4
3.2
3.0
PSRR vs. Frequency (LDO1)
0
-10
-20
PSRR (dB)
PSRR vs. Frequency (LDO2)
0
-10
-20
PSRR (dB)
V
IN
=3.7V at 25°C, I
LDO1
=50mA, V
LDO1
=2.8V
V
IN
=3.7V at 25°C, I
LDO2
=50mA, V
LDO2
=1.8V
-30
-40
-50
-60
-70
10
100
Frequency (Hz)
1000
10000
-30
-40
-50
-60
-70
10
100
Frequency (Hz)
1000
10000
8
SEMTECH [ SEMTECH CORPORATION ]
