NCV8518B: LDO Regulator, 250 mA, High PSRR
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The NCV8518B device is a precision micropower voltage regulator. It has a fixed output voltage of 5.0 V and regulates within ±2%.
Microprocessor control logic includes an active RESET (with DELAY), wakeup, watchdog and enable.
The NCV8518B Wakeup function brings the microprocessor out of Sleep mode. The microprocessor in turn signals its Wakeup status back to the NCV8518B by issuing a Watchdog signal.
The active RESET circuit operates correctly at an output voltage as low as 1.0 V. The RESET function is activated during the power up sequence, during normal operation if the output voltage drops below the regulation limits or if the regulator does not receive a Watchdog signal within a Wakeup period.
The Watchdog logic function monitors an input signal (WDI) from the microprocessor. The device responds to the falling edge of the Watchdog signal which it expects at least once during each Wakeup period.
Enable is a standard TTL and CMOS logic compatible input that can be used to turn the regulator on or off. In the disabled/shutdown state, the pass transistor is off and total quiescent current is less than 1 µA.
Also encompassed in this device are safety features such as thermal shutdown and short circuit protection, an important consideration in automotive environments.
NCV8518B is pin for pin compatible with NCV8518A and can replace this device in any new design.
Microprocessor control logic includes an active RESET (with DELAY), wakeup, watchdog and enable.
The NCV8518B Wakeup function brings the microprocessor out of Sleep mode. The microprocessor in turn signals its Wakeup status back to the NCV8518B by issuing a Watchdog signal.
The active RESET circuit operates correctly at an output voltage as low as 1.0 V. The RESET function is activated during the power up sequence, during normal operation if the output voltage drops below the regulation limits or if the regulator does not receive a Watchdog signal within a Wakeup period.
The Watchdog logic function monitors an input signal (WDI) from the microprocessor. The device responds to the falling edge of the Watchdog signal which it expects at least once during each Wakeup period.
Enable is a standard TTL and CMOS logic compatible input that can be used to turn the regulator on or off. In the disabled/shutdown state, the pass transistor is off and total quiescent current is less than 1 µA.
Also encompassed in this device are safety features such as thermal shutdown and short circuit protection, an important consideration in automotive environments.
NCV8518B is pin for pin compatible with NCV8518A and can replace this device in any new design.
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Availability & Samples
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Specifications
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外形
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应用框图
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Intaractive Block Diagram
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外形 |
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NCV8518BPDR2G | Active |
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NCV8518B, 5.0 V | SOIC-8 EP | 751AC | 2 | 260 | Tape and Reel | 2500 | $0.72
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NCV8518BPWR2G | Lifetime |
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NCV8518B, 5.0 V | SOIC-16 WB EP | 751AG | 1 | 260 | Tape and Reel | 1000 | $0.8
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市场订货至交货的时间(周) | : | Contact Factory |
市场订货至交货的时间(周) | : | Contact Factory |
Product
Description
Pricing ($/Unit)
Compliance
Status
Output
Polarity
VO (V)
IO Typ (A)
VI Min (V)
VI Max (V)
VDO Typ (V)
Iq Typ (mA)
PSRR (dB)
Noise (µVrms)
Enable
PowerGood
Application
Package Type
NCV8518BPDR2G
$0.72
Pb
A
H
P
Active
Single
Positive
5
0.25
6
45
0.425
0.1
70
-
Yes
No
Automotive
SOIC-8 EP
Application
Diagram - Block
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1.2 A LDO Regulator
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设计支援 |