text.skipToContent text.skipToNavigation

LM5122MHX/NOPB ACTIVE

3-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability

NEW - Custom reel may be available
Inventory: 23,027  
 

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
View or download

Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (℃)
HTSSOP (PWP) | 20 2,500 | LARGE T&R
Custom reel may be available
-40 to 125
Package | Pins HTSSOP (PWP) | 20
Package qty | Carrier: 2,500 | LARGE T&R
Custom reel may be available
Operating temperature range (℃) -40 to 125
View TI packaging information

Features for the LM5122

  • Maximum Input Voltage: 65 V
  • Minimum Input Voltage: 3 V (4.5 V for Start-Up)
  • Output Voltage up to 100 V
  • Bypass (VOUT = VIN) Operation
  • 1.2-V Reference with ±1% Accuracy
  • Free-Run and Synchronizable Switching to 1 MHz
  • Peak-Current-Mode Control
  • Robust 3-A Integrated Gate Drivers
  • Adaptive Dead-Time Control
  • Optional Diode-Emulation Mode
  • Programmable Cycle-by-Cycle Current Limit
  • Hiccup-Mode Overload Protection
  • Programmable Line UVLO
  • Programmable Soft Start
  • Thermal Shutdown Protection
  • Low Shutdown Quiescent Current: 9 µA
  • Programmable Slope Compensation
  • Programmable Skip-Cycle Mode Reduces Standby Power
  • Allows External VCC Supply
  • Inductor DCR Current Sensing Capability
  • Multi-phase Capability
  • Thermally Enhanced 20 or 24-Pin HTSSOP
  • Create a Custom Design Using the LM5122 With the WEBENCH® Power Designer

All trademarks are the property of their respective owners.

Description for the LM5122

The LM5122 is a multi-phase capable synchronous boost controller intended forhigh-efficiency synchronous boost regulator applications. The control method is based uponpeak-current-mode control. Current-mode control provides inherent line feed forward, cycle-by-cyclecurrent limiting, and ease of loop compensation.

The switching frequency is programmable up to 1 MHz. Higher efficiency isachieved by two robust N-channel MOSFET gate drivers with adaptive dead-time control. Auser-selectable diode-emulation mode also enables discontinuous-mode operation for improvedefficiency at light load conditions.

An internal charge pump allows 100% duty cycle for high-side synchronous switch (bypassoperation). A 180° phase shifted clock output enables easy multi-phase interleaved configuration.Additional features include thermal shutdown, frequency synchronization, hiccup-mode current limit,and adjustable line undervoltage lockout.

Pricing


Qty Price (USD)
1-99 3.2
100-249 2.804
250-999 1.966
1,000+ 1.584

Additional package qty | carrier options

Package qty | Carrier 73 | TUBE
Inventory 6,942
Qty | Price (USD) 1ku | 1.901 1-99 3.498 100-249 2.852 250-999 2.241 1,000+ 1.901

Package qty | Carrier 250 | SMALL T&R
Inventory 18,428
Qty | Price (USD) 1ku | 1.822 1-99 3.352 100-249 2.733 250-999 2.148 1,000+ 1.822