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TI LM5161QPWPTQ1

Manufacturer
TI
MPN
LM5161QPWPTQ1
LCSC Part #
C89824
Packaging
HTSSOP-14-EP
Customer #
Key Attributes
1MHz Step-down type Adjustable 1A HTSSOP-14-EP Voltage Regulators - DC DC Switching Regulators RoHS
DatasheetTI LM5161QPWPTQ1
RoHS Compliance1 documents available
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1+$ 5.8762$ 5.88
10+$ 5.7364$ 57.36
30+$ 5.6427$ 169.28
100+$ 5.5489$ 554.89
Standard Packaging250/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingHTSSOP-14-EP
Operating Temperature-40℃~+150℃@(TJ)
Frequency - Switching1MHz
FunctionStep-down type
Number of Outputs1
FeaturesAdjustable soft-start;Overcurrent Protection;Light load efficient mode;Built-in LDO regulator
Output TypeAdjustable
TopologyBuck
Operating Voltage4.5V~100V
Switch tube (built-in/external)Built-in
Output Voltage-
Output Current1A
Quiescent Current2.3mA
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Introduction

AI Translation

The LM5161-Q1 is a 100-V, 1-A synchronous stepdown converter with integrated high-side and low-side MOSFETs. The constant-ON-time control scheme requires no loop compensation and supports high step-down ratios with fast transient response. An internal feedback amplifier maintains ±1% output voltage regulation over the entire operating temperature range. The ON-time varies inversely with input voltage resulting in nearly constant switching frequency. Peak and valley current limit circuits protect against overload conditions. The undervoltage lockout (EN/UVLO) circuit provides independently adjustable input undervoltage threshold and hysteresis. The FPWM input pin in LM5161-Q1 selects either the forced continuous conduction mode (CCM) under all load levels or the discontinuous conduction mode (DCM) under light or no load conditions. When operating in forced CCM, the LM5161-Q1 supports the multiple output and isolated Fly-Buck applications. When programmed for the DCM operation, the LM5161-Q1 provides a tightly regulated buck output without any additional external feedback ripple injection circuit.

Features

AI Translation
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: -40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Wide 4.5-V to 100-V Input Voltage Range
  • Integrated High-Side and Low-Side Switches
    • No Schottky Diode Required
  • 1-A Maximum Load Current
  • Constant ON-Time Control
    • No External Loop Compensation
    • Fast Transient Response
  • Selectable DCM Buck Operation at Light Load
  • CCM Option Supports Multi-Output Fly-Buck™
  • No External Ripple circuit needed (at FPWM = 0)
  • Nearly Constant Switching Frequency
  • Frequency Adjustable Up to 1 MHz
  • Programmable Soft-Start Time
  • Prebias Start-Up
  • Peak Current Limiting Protection
  • Adjustable Input UVLO and Hysteresis
  • ±1% Feedback Voltage Reference
  • Thermal Shutdown Protection
  • Create a Custom Design Using the LM5161-Q1 With the WEBENCH Power Designer

Applications

AI Translation
  • Industrial Programmable Logic Controller
  • IGBT Gate Drive Bias Supply
  • Telecom DC/DC Primary/Secondary Side Bias
  • E-Meter Power Line Communication
  • Low-Power (<12W), Isolated DC-DC (Fly-Buck)
  • Automotive Electronics