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AC/DC & DC/DC controllers (external FET)

LM34936

現行

30V 寬輸入電壓同步 4 開關降壓/升壓控制器

立即訂購
產品規格表

LM34936

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 4.2 Vin (max) (V) 30 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Catalog Vout (min) (V) 0.8 Vout (max) (V) 30 Iq (typ) (A) 0.002 Duty cycle (max) (%) 100
Vin (min) (V) 4.2 Vin (max) (V) 30 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Catalog Vout (min) (V) 0.8 Vout (max) (V) 30 Iq (typ) (A) 0.002 Duty cycle (max) (%) 100
VQFN (RHF) 28 20 mm² 5 x 4
  • Single inductor buck-boost controller for step-up/step-down DC/DC conversion
  • Wide VIN: 4.2 V (2.5 V with bias) to 30 V (42-V maximum)
  • Flexible VOUT: 0.8 V to 30 V
  • VOUT short protection
  • High efficiency buck-boost transition
  • Adjustable switching frequency
  • Optional frequency sync and dithering
  • Integrated 2-A MOSFET gate drivers
  • Cycle-by-cycle current limit and optional hiccup
  • Optional input or output average current limiting
  • Programmable lnput UVLO and soft start
  • Power good and output overvoltage protection
  • Available in QFN-28 package
  • Create a custom design using the LM34936 with the WEBENCH Power Designer
  • Single inductor buck-boost controller for step-up/step-down DC/DC conversion
  • Wide VIN: 4.2 V (2.5 V with bias) to 30 V (42-V maximum)
  • Flexible VOUT: 0.8 V to 30 V
  • VOUT short protection
  • High efficiency buck-boost transition
  • Adjustable switching frequency
  • Optional frequency sync and dithering
  • Integrated 2-A MOSFET gate drivers
  • Cycle-by-cycle current limit and optional hiccup
  • Optional input or output average current limiting
  • Programmable lnput UVLO and soft start
  • Power good and output overvoltage protection
  • Available in QFN-28 package
  • Create a custom design using the LM34936 with the WEBENCH Power Designer

The LM34936 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM34936 operates over a wide input voltage range of 4.2 V to 30 V (42-V absolute maximum) to support a variety of applications.

The LM34936 employs current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal.

The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM34936 features optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.

The LM34936 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM34936 operates over a wide input voltage range of 4.2 V to 30 V (42-V absolute maximum) to support a variety of applications.

The LM34936 employs current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal.

The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM34936 features optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.
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類型 標題 日期
* Data sheet LM34936 30-V Wide VIN Synchronous 4-Switch Buck-Boost Controller datasheet (Rev. A) PDF | HTML 2021年 8月 13日
Certificate LM34936EVM EU Declaration of Conformity (DoC) 2023年 11月 14日
Technical article Adjusting VOUT in USB Type-C™ and wireless charging applications, part 2 PDF | HTML 2020年 2月 18日
Technical article Adjusting VOUT in USB Type-C™ and wireless charging applications, part 1 PDF | HTML 2020年 2月 10日
Technical article Four-switch buck-boost layout tip No. 4: routing gate-drive and return paths PDF | HTML 2019年 2月 20日
EVM User's guide LM34936EVM User Guide 2018年 8月 22日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LM34936EVM — LM34936 評估模組

The LM34936EVM features a four switch buck-boost converter based on TI’s LM34936 Wide VIN buck-boost controller. This converter is designed to operate from input voltage from 6V to 30V and provide a 12V regulated output with a load current of up to 6 A.
使用指南: PDF
TI.com 無法提供
模擬型號

LM34936 PSpice Transient Model

SNVMBL5.ZIP (130 KB) - PSpice Model
下載
CAD/CAE 符號

LM34936EVM Altium CAD Files

SNVR492.ZIP (752 KB)
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計算工具

LM34936-BUCK-BOOST-QUICKSTART-TOOL — LM34936 Buck-Boost Quickstart Tool

The LM34936 Buck-Boost Quickstart Tool support to configure the power stage and the external components for the LM34936.
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支援產品和硬體

產品
降壓-升壓和反相控制器 (外部開關)
LM34936 — 30V 寬輸入電壓同步 4 開關降壓/升壓控制器 LM34936-Q1 — 車用 30V 寬輸入電壓同步 4 開關降壓/升壓控制器
AC/DC & DC/DC controllers (external FET)
LM34936 — 30V 寬輸入電壓同步 4 開關降壓/升壓控制器 LM34936-Q1 — 車用 30V 寬輸入電壓同步 4 開關降壓/升壓控制器
硬體開發
LM34936EVM — LM34936 評估模組
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VQFN (RHF) 28 檢視選項
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