LT8631EFE#PBF Micropower Buck Regulators by Analog Devices

Status: Production
Series: LT8631
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT8631 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 1A. The wide input range of 3V to 100V makes the LT8631 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom supplies. Low ripple Burst Mode operation enables high efficiency operation down to very low output currents while keeping the output ripple below 10mVP-P. Resistor programmable 100kHz to 1MHz frequency range and synchronization capability enable optimization between efficiency and external component size. The soft-start feature controls the ramp rate of the output voltage, eliminating input current surge during start-up, while also providing output tracking. A power good flag signals when the output voltage is within ±7.5% of the regulated output. Undervoltage lockout can be programmed using the EN/UV pin. Shutdown mode reduces the total quiescent current to < 5μA. The LT8631 is available in a 20-lead TSSOP package with exposed pad for low thermal resistance and high voltage lead spacing.

Where to Buy

Prices starting from US$4.96

Distributor Stock
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Newark Electronics
from US$7.51
40
in stock
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Analog Devices
from US$4.96
25
in stock
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Richardson RFPD
from US$6.57
0
in stock
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Farnell
from US$7.40
0
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Features

Ultrawide Input Voltage Range: 3V to 100V
Output Voltage Range: 0.8V to 60V
Internal Synchronous Switches
Low Ripple Burst Mode® Operation:
16μA IQ at 12VIN to 5VOUT Output Ripple <10mVP-P
7μA IQ at 48VIN to 5VOUT Output Ripple <10mVP-P
Low Dropout: 99% Maximum Duty Cycle
Peak Current Mode Control
Fixed Frequency Operation: 100kHz to 1MHz
Synchronization Input
Programmable Undervoltage Lockout
Power Good Flag
Flexible Output Voltage Tracking
Short-Circuit Protection
Low Shutdown Current: 5μA
Tolerates Pin Open/Short Faults
Thermally Enhanced 20-Lead TSSOP with High Voltage Lead Spacing
AEC-Q100 Qualified for Automotive Applications

Last 6 months Inventory & Pricing History


Alternative Descriptions

Dc/Dc Conv, Sync Buck, 1Mhz, 125Deg C | Newark Electronics
100V, 1A Sync uP Buck Reg | Analog Devices
Conv DC-DC 3V to 100V Synchronous Step Down Single-Out 0.8V to 60V 1A 16-Pin TSSOP EP Tube | Richardson RFPD
DC/DC CONV, SYNC BUCK, 1MHZ, 125DEG C | Farnell


LT8631EFE#PBF Power Management ICs - PMIC by Linear Technology

DC/DC CONV SYNC BUCK 1MHZ TSSOP-20

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Topology Synchronous Buck (Step Down)
Input Voltage Min 3V
Input Voltage Max 100V
No. of Outputs 1Outputs
DC / DC Converter IC Case TSSOP
No. of Pins 20Pins
Output Current 1A
Output Voltage Min 800mV
Output Voltage Max 60V
Switching Frequency 1MHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT8631EFE#PBF?

Additional datasheets, footprints and schematics for LT8631EFE#PBF are listed on our Part Details page. You can also find images and similar parts to LT8631EFE#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LT8631EFE#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LT8631EFE#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LT8631EFE#PBF fall under?

The LT8631EFE#PBF is listed under Micropower Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to LT8631EFE#PBF when available in the Micropower Buck Regulators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LT8631EFE#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LT8631EFE#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LT8631EFE#PBF have stock available?

Authorised distributors including Newark Electronics, Analog Devices, Richardson RFPD and Farnell have stock available or on a lead time for LT8631EFE#PBF.

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