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TI LM5122ZAPWPRRoHS

Manufacturer
TI
MPN
LM5122ZAPWPR
LCSC Part #
C1850331
Packaging
HTSSOP-24-EP
Customer #
Key Attributes
Wide-input synchronous boost controller with polyphase function
Datasheetpdf iconTI LM5122ZAPWPR
In-Stock: 97
97 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 3.6311$ 3.63
10+$ 3.1086$ 31.09
30+$ 2.7961$ 83.88
100+$ 2.482$ 248.20
500+$ 2.3372$ 1168.60
1,000+$ 2.2721$ 2272.10
Standard Packaging2000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerTI
PackagingHTSSOP-24-EP
Synchronous RectifierYes
FeaturesAdjustable current limiting;Cycle-by-cycle current limiting;Hiccup current limiting;Adjustable soft-start;Frequency synchronization;External compensation;Light load efficient mode
Number of Channels1
TopologyBoost
Operating Voltage4.5V~65V
Switch tube (built-in/external)External
Output Voltage-
Operating Temperature-40℃~+125℃@(TJ)
Output Current-
Frequency - Switching875kHz
Output TypeAdjustable
FunctionBoost
Quiescent Current4mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2000
Sales UnitPiece

Introduction

AI Translation

LM5122ZA is a synchronous boost controller with multiphase capability, designed for high-efficiency synchronous boost regulator operation. The control method is based on peak current mode control, which provides inherent line feedforward, cycle-by-cycle current limiting, and simplified loop compensation. Switching frequency is programmable up to 1MHz. Higher efficiency is achieved through two robust N-channel MOSFET gate drivers with adaptive dead-time control. A user-selectable diode emulation mode also supports discontinuous mode operation for improved efficiency under light-load conditions. An internal charge pump enables 100% duty cycle (bypass operation) for the high-side synchronous switch. A 180° phase-shifted clock output allows simple multiphase interleaved configurations. Additional features include thermal shutdown, frequency synchronization, hiccup mode current limiting, and adjustable input undervoltage lockout.

Features

AI Translation
  • Maximum input voltage: 65V
  • Minimum input voltage: 3V (4.5V at startup)
  • Output voltage up to 100V
  • Bypass (VOUT = VIN) operation
  • 1.2V reference voltage with ±1% accuracy
  • Free-running and synchronizable switching frequency up to 1MHz
  • Peak current mode control
  • Robust 3A integrated gate driver
  • 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: 9μA
  • Programmable slope compensation
  • Programmable skip-cycle mode for reduced standby power
  • External VCC supply support
  • Inductor DCR current sensing
  • Multiphase-capable, thermally enhanced 24-pin HTSSOP

Applications

AI Translation
  • 12V, 24V, and 48V power supply systems
  • Wireless infrastructure
  • Audio power supplies
  • High-current boost power supplies