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CS5112 Datasheet(PDF) 3 Page - ON Semiconductor

Part No. CS5112
Description  1.4 A Switching Regulator with 5.0 V, 100 mA Linear Regulator with Watchdog, RESET and ENABLE
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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CS5112 Datasheet(HTML) 3 Page - ON Semiconductor

 
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CS5112
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ELECTRICAL CHARACTERISTICS (5.0 V
≤ VIN ≤ 26 V and −40°C ≤ TJ ≤ 150°C, COUT = 100 mF (ESR ≤ 8.0 W), CDelay = 0.1 mF,
RBIAS = 64.9 kW, COSC = 390 pF, CCOMP = 0.1 mF; unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
General
IIN Off Current
6.6 V
≤ VIN ≤ 26 V, ISW = 0 A
2.0
mA
IIN On Current
6.6 V
≤ VIN ≤ 26 V, ISW = 1.4 A
30
70
mA
IREG Current
ILIN = 100 mA, 6.6 V ≤ VIN ≤ 26 V
6.0
mA
Thermal Limit
Guaranteed by Design
160
210
°C
5.0 V Regulator Section
VLIN Output Voltage
6.6 V
≤ VREG ≤ 26 V, 1.0 mA ≤ ILIN ≤ 100 mA
4.9
5.0
5.1
V
Dropout Voltage
(VREG − VLIN) @ ILIN = 100 mA
1.2
1.5
V
Line Regulation
6.6 V
≤ VREG ≤ 26 V, ILIN = 5.0 mA
5.0
25
mV
Load Regulation
VREG = 19 V, 1.0 mA ≤ ILIN ≤ 100 mA
5.0
25
mV
Current Limit
6.6 V
≤ VREG ≤ 26 V
120
mA
DC Ripple Rejection
14 V
≤ VREG ≤ 24 V
60
75
dB
RESET Section
Low Threshold (VRTL)
VLIN Decreasing
4.05
4.25
4.45
V
High Threshold (VRTH)
VLIN Increasing
4.2
4.45
4.7
V
Hysteresis
VRTH − VRTL
140
190
240
mV
Active High
VLIN > VRTH, IRESET = −25 mA
VLIN − 0.5
V
Active Low
VLIN = 1.0 V, 10 kW Pullup from RESET to VLIN
VLIN = 4.0 V, IRESET = 1.0 mA
0.4
0.7
V
V
Delay
Invalid WDI
6.25
8.78
11
ms
Power On Delay
VLIN Crossing VRTH
6.25
ms
Watchdog Input (WDI)
VIH
Peak WDI Needed to Activate RESET
2.0
V
VIL
0.8
V
Hysteresis
(Note 2)
25
50
mV
Pullup Resistor
WDI = 0 V
20
50
100
k
W
Low Threshold
6.25
8.78
11
ms
Floating Input Voltage
3.5
V
WDI Pulse Width
5.0
ms
Switcher Section
Minimum Operating Input Voltage
5.0
V
Switching Frequency
Refer to Figure 5
80
95
110
kHz
Switch Saturation Voltage
ISW = 1.4 A
0.7
1.1
1.6
V
Output Current Limit
1.4
2.5
A
Max Switching Frequency
VSW = 7.5 V with 50 W Load, Refer to Figure 5
120
kHz
VFB1 Regulation Voltage
1.206
1.25
1.294
V
VFB2 Regulation Voltage
1.206
1.25
1.294
V
VFB1, VFB2 Input Current
VFB1 = VFB2 = 5.0 V
1.0
mA
Oscillator Charge Current
COSC = 0 V
35
40
45
mA
Oscillator Discharge Current
COSC = V40
270
320
370
mA
CDelay Charge Current
CDelay = 0 V
35
40
45
mA
2. Guaranteed by design, not 100% tested in productions.


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