CS5257A-1GDP5 查看數據表（PDF） - ON Semiconductor
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CS5257A-1GDP5 Datasheet PDF : 11 Pages
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5.0 V
3.3 V
10 mF
10 V
CS5257A−1
VCONTROL
VOUT
CS5257A−1
VPOWER
VSENSE
Adjust
100 mF
5.0 V
0.1 mF
5.0 V
124
1.0%
124
1.0%
Load
2.5 V @ 7.0 A
300 mF
5.0 V
Figure 1. Application Diagram
MAXIMUM RATINGS*
Rating
Value
Unit
VPOWER Input Voltage
VCONTROL Input Voltage
Operating Junction Temperature Range, TJ
Storage Temperature Range
6.0
V
13
V
0 to 150
°C
−65 to +150 °C
ESD Damage Threshold
2.0
kV
Lead Temperature Soldering:
Wave Solder (through hole styles only) Note 1 260 peak
°C
Reflow (SMD styles only) Note 2 230 peak
°C
1. 10 second maximum.
2. 60 second maximum above 183°C.
*The maximum package power dissipation must be observed.
ELECTRICAL CHARACTERISTICS (0°C ≤ TA ≤ 70°C; 0°C ≤ TJ ≤ 150°C; VSENSE = VOUT and VADJ = 0 V; unless
otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
CS5257A−1
Reference Voltage
VCONTROL = 2.75 V to 12 V, VPOWER = 2.05 V to 5.5 V, 1.234
1.253
1.272
V
10 mA ≤ IOUT ≤ 7.0 A
(−1.5%)
(+1.5%)
Line Regulation
VCONTROL = 2.5 V to 12 V, VPOWER = 1.75 V to 5.5 V,
−
0.02
0.2
%
IOUT = 10 mA
Load Regulation (Note 3)
VCONTROL = 2.75 V, VPOWER = 2.05 V,
IOUT = 10 mA to 7.0 A, with Remote Sense
−
0.04
0.2
%
Minimum Load Current (Note 4)
VCONTROL = 5.0 V, VPOWER = 3.3 V, DVOUT = +1.0%
−
5.0
10
mA
Control Pin Current (Note 5)
VCONTROL = 2.75 V, VPOWER = 2.05 V, IOUT = 100 mA
−
VCONTROL = 2.75 V, VPOWER = 2.05 V, IOUT = 4.0 A
−
VCONTROL = 2.75 V, VPOWER = 1.75 V, IOUT = 4.0 A
−
VCONTROL = 2.75 V, VPOWER = 2.05 V, IOUT = 7.0 A
−
6.0
10
mA
30
60
mA
33
70
mA
60
180
mA
Adjust Pin Current
VCONTROL = 2.75 V, VPOWER = 2.05 V, IOUT = 10 mA
−
60
120
mA
Current Limit
VCONTROL = 2.75 V, VPOWER = 2.05 V, DVOUT = −1.5%
7.1
10
−
A
3. This parameter is guaranteed by design and is not 100% production tested.
4. The minimum load current is the minimum current required to maintain regulation. Normally the current in the resistor divider used to set
the output voltage is selected to meet the minimum load current requirement.
5. The VCONTROL pin current is the drive current required for the output transistor. This current will track output current with roughly a 1:100
ratio. The minimum value is equal to the quiescent current of the device.
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