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L7987
L7987
761-L7987
16-TSSOP (0.173, 4.40mm Width) Exposed Pad
16-Pin L7987 DC DC Voltage Regulator SWITCHING REGULATOR 1 Outputs 250kHz~1.5MHz Tube 16-TSSOP (0.173, 4.40mm Width) Exposed Pad
In Stock : 999
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Product Details
Purchasing and Inquiry
L7987 Description
The L7987 device is a step-down monolithic switching regulator able to deliver up to 3 A DC. The output voltage adjustability ranges from 0.8 V to VIN. The wide input voltage range and the 100% duty cycle capability meet the fail safe specifications for industrial systems. The embedded switchover feature on the VBIAS pin maximizes the efficiency at light load. The adjustable current limitation, designed to select the inductor RMS current accordingly with the nominal output current, and the high switching frequency capability make the size of the application compact. Pulse-by-pulse current sensing with digital frequency foldback implements an effective constant current protection over the different application conditions. The peak current foldback decreases the stress of the power components in heavy short-circuit condition. The PGOOD open collector output can also implement output voltage sequencing during the power-up phase. Multiple devices can be synchronized sharing the SYNCH pin to prevent beating noise in low noise applications like sensors with A/D conversion.
L7987 Features
3 A DC output current
4.5 V to 61 V operating input voltage
RDS,ON = 250 mΩ typ.
Adjustable fSW (250 kHz - 1.5 MHz)
Low IQ-SHD (11 μA typ. from VIN)
Low IQ (1 mA typ. - VIN 24 V - VOUT 3.3 V)
Output voltage adjustable from 0.8 V to VIN
Synchronization
Adjustable soft-start time
Adjustable current limitation
Low dropout operation (12 μs max.)
VBIAS improves efficiency at light load
PGOOD open collector output
Output voltage sequencing
Digital frequency foldback in short-circuit
Peak current foldback in short-circuit
Auto-recovery thermal shutdown
L7987 Applications
Designed for 24 V bus
Fail safe tolerant system
Programmable logic controllers (PLCs)
5G Communication
Electrification of automobile
Industrial 4.0
You can send an inquiry by email, or add the item to the RFQ list and submit it to us.
Tell us the model and quantity you need, our sales staff will reply the price in time.
Email for receiving inquiries: jindawei@hkjdwchip.com
For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and wire transfer.
3. RFQ (Request for Quotations)It is recommended to request for quotations to get the latest prices and inventories about the part.
Our sales will reply to your request by email within 24 hours.
1. You'll receive an order information email in your inbox. (Please remember to check the spam folder if you didn't hear from us).
2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.
Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)
The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and country.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
Delivery TimeOnce the goods are shipped, estimated delivery time depends on the shipping methods you chose:
FedEx International, 5-7 business days.
The following are some common countries' logistic time.
Payment Method
| The fee is charged according to the rule of PayPal. | |
| East West Bank charge US$30.00 banking fee. | |
| The fee is charged according to the rule of PayPal. | |
| Western Union charge US$0.00 banking fee. |
Shipping
| DHL(www.dhl.com) From $40.00 basic shipping fee depend on zone and country. |
|
| UPS(www.ups.com) From $40.00 basic shipping fee depend on zone and country. |
|
| FedEx(www.fedex.com) From $40.00 basic shipping fee depend on zone and country. |
|
| Registered Mail(www.singpost.com) From $10.00 basic shipping fee depend on different zone and country. |
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L7987
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