CS5253-1 Datasheet, PDF (4/10 Pages) Cherry Semiconductor Corporation – 3A LDO 5-Pin Adjustable Linear Regulator

V_POWER
V_CONTROL
CS5253−1
BIAS
and
TSD
V_REF
− ^EA
+
IA ₊
−
V_OUT
V_SENSE
Adjust
Figure 2. Block Diagram
1.253
TYPICAL PERFORMANCE CHARACTERISTICS
0.12
1.252
1.251
0.10
T_J = 120°C
0.08
1.250
1.249
1.248
0.06
T_J = 20°C
0.04
0.02
T_J = 0°C
1.247
0
20
40
60
80
100
120
Junction Temperature (°C)
Figure 3. Reference Voltage vs Junction Temperature
0
0
0.5
1.0
1.5
2.0
2.5
3.0
Output Current (A)
Figure 4. Load Regulation vs Output Current
V_CONTROL = 5.0 V
V_POWER = 3.3 V
V_OUT = 2.5 V
C_CONTROL = 10 mF
C_POWER = 100 mF
C_ADJ = 0.1 mF
C_OUT = 300 mF
V_OUT
I_LOAD,
10 mA to 3.0 A
Figure 5. Transient Response
5.0
4.5
Measured at DV_OUT = −1.0%
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
00
1
2
3
4
5
6
V_POWER − V_OUT (V)
Figure 6. Output Current vs V_POWER − V_OUT
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