You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.

Product may not be an exact match for your search

You previously purchased this product. View in Order History

 
 

LTC7801EFE#PBF

DC/DC CTRL, SYNC BUCK, 900KHZ, QFN-28

LINEAR TECHNOLOGY LTC7801EFE#PBF

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
LTC7801EFE#PBF
Order Code:
2768182
Technical Datasheet:
LTC7801EFE#PBF   Datasheet
See all Technical Docs

Product Overview

The LTC7801EFE#PBF from Linear Technology is a 150V, low IQ, synchronous step-down DC to DC controller in 24 pin TSSOP package. This high performance step-down switching regulator DC to DC controller drives an all N-channel synchronous power MOSFET stage that can operate from input voltages up to 140V. Constant frequency current mode architecture allows a phase-lockable frequency of up to 850KHz. The gate drive voltage can be programmed from 5V to 10V to allow the use of logic or standard level FETs to maximize efficiency. An integrated switch in the top gate driver eliminates the need for an external bootstrap diode. The low 40µA no-load quiescent current extends operating run time in battery powered systems. OPTI-LOOP® compensation allows transient response to be optimized over a wide range of output capacitance and ESR values. The LTC7801 features a precision 0.8V reference. It is used in high voltage battery operated systems and telecommunications power systems.
  • Wide VIN range from 4V to 140V (150V absolute maximum)
  • Output voltage can be programmed between 0.8V to 60V using external resistors
  • 5V to 10V (OPTI-DRIVE) adjustable gate drive level, feedback current is -0.006µA
  • 40µA low operating IQ (shutdown = 10µA), internal charge pump allows for 100% duty cycle operation
  • Selectable gate drive UVLO thresholds, no external bootstrap diode required
  • EXTVCC LDO powers drivers from VOUT and onboard LDO or external NMOS LDO for DRVCC
  • Phase lockable frequency (75KHz to 850KHz), programmable fixed frequency (50KHz to 900KHz)
  • Burst mode operation at light loads, selectable continuous, pulse-skipping or low ripple
  • Adjustable burst clamp, power good output voltage monitor, programmable input overvoltage lockout
  • Power good output indicator, operating temperature range from -40°C to 125°C

Applications

Power Management, Automotive, Industrial

Product Information

Want to see similar products? Simply select your required attributes below and hit the button ×


:
4V

:
140V

:
1 Output

:
100%

:
TSSOP

:
24Pins

:
900kHz

:
Synchronous Buck (Step Down)

:
-40°C

:
125°C

:
-

:
-

Find similar products Choose and modify the attributes above to find similar products.

Technical Docs (1)

No Longer Manufactured

HK$93.55

Pricing is unavailable. Please contact customer services.

Price for:
Each
Multiple: 1 Minimum: 1
Quantity Price Your Price
 
 
1+ HK$93.55
Promotional price
Contract Price
Web only price
Web only contract price
 
25+ HK$62.15
Promotional price
Contract Price
Web only price
Web only contract price
 
100+ HK$51.38
Promotional price
Contract Price
Web only price
Web only contract price
 
250+ HK$48.80
Promotional price
Contract Price
Web only price
Web only contract price
 
500+ HK$47.70
Promotional price
Contract Price
Web only price
Web only contract price
 
 
 

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Back Order Pre-Order
Add
Restricted Item
Add Part No. / Line Note
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Customer Q&A Exchange