NCV8842PWGEVB データシートの表示（PDF） - ON Semiconductor
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NCV8842PWGEVB
ON Semiconductor
NCV8842PWGEVB Datasheet PDF : 11 Pages
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NCV8842PWGEVB
Table 1. ABSOLUTE MAXIMUM RATINGS
Pin Name
Maximum Voltage
Maximum Current
VIN
VOUT
SHDNB
16 V
10 V
7.0 V
2.0 A
2.0 A
1.0 mA
SYNC
7.0 V
1.0 mA
Stresses exceeding Maximum Ratings may damage the board. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied.
Table 2. NCV8842 SOIC EVALUATION BOARD USER TERMINALS
VIN
GND
Positive DC input voltage, 7 V to 16 V
Common power negative / signal return
VOUT
SHDNB
Regulated DC output voltage
Shutdown−bar signal. Leave open or drive high for normal operation, drive low to force the regulator into
sleep/shutdown mode.
SYNC
Input signal to synchronize to converter oscillator to a higher external frequency source. Leave open if unused.
BR1, BR2, BR3
Bridges (jumpers) for programming the regulated output voltage to one of three levels. Always bridge one pair of
terminals.
Terminals bridged
BR1
VOUT
2.5 V
BR2
3.3 V
BR3
5.0 V
Table 3. ELECTRICAL CHARACTERISTICS
(TA = 25°C, 7.0 V ≤ VIN ≤ 16 V, 0.1 A ≤ IOUT ≤ 1.0 A, unless otherwise specified.)
Characteristic
Test Conditions
Typ
Unit
Output Voltage
Voltage Accuracy
−
4.0
%
Line Regulation
No Load
0.02
%
Load Regulation
Transient Response
VIN = 7.0 V
−
0.15
%
3.0
%
Transient Response Time
Load toggle between 0.1 A and 1.0 A
10
μs
Startup Time
−
5.0
ms
Input Voltage
Start Threshold
−
3.3
V
Sync and Shutdown
Sync Frequency
−
190 to 355
kHz
Minimum Sync Threshold Voltage
−
1.0
V
Minimum Shutdown Threshold Voltage
−
0.3
V
Maximum Shutdown Bias Current
−
12
mA
General
Switching Frequency
−
170
kHz
Efficiency
ILOAD = 100 mA
ILOAD = 1.0 A
77.5
%
83
%
Shutdown Current*
−
*If a pull−up resistor is employed, the shutdown current is increased drastically (Vin/R).
1.0
mA
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