LM34936-Q1

現行

車用 30V 寬輸入電壓同步 4 開關降壓/升壓控制器

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產品規格表

document-pdfAcrobat LM34936-Q1 30-V Wide VIN Synchronous Four-Switch Buck-Boost Controller datasheet (Rev. A) (英文) PDF | HTML

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LM51772-Q1

現行

具有 I2C 介面的車用、55V 4 交換器降壓升壓控制器 Newer features and functionality including addition of I2C interface

LM34936-Q1

現行

產品規格表

立即訂購

產品詳細資料

Rating

Automotive

Topology

Buck-Boost

Vin (max) (V)

30

Vin (min) (V)

4.2

Vout (max) (V)

30

Vout (min) (V)

0.8

Features

Adjustable current limit, Enable, Frequency synchronization, Power good, Prebias startup, Spread Spectrum, Synchronous rectification, UVLO adjustable

EMI features

Frequency Dithering, Spread Spectrum

Duty cycle (max) (%)

100

Iq (typ) (A)

0.002

Operating temperature range (°C)

-40 to 125

Rating

Automotive

Topology

Buck-Boost

Vin (max) (V)

30

Vin (min) (V)

4.2

Vout (max) (V)

30

Vout (min) (V)

0.8

Features

Adjustable current limit, Enable, Frequency synchronization, Power good, Prebias startup, Spread Spectrum, Synchronous rectification, UVLO adjustable

EMI features

Frequency Dithering, Spread Spectrum

Duty cycle (max) (%)

100

Iq (typ) (A)

0.002

Operating temperature range (°C)

-40 to 125

HTSSOP (PWP)

28

62.08 mm² (9.7 mm × 6.4 mm)

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to 125°C T_A
Single inductor buck-boost controller for step-up or step-down DC/DC conversion
Wide V_IN: 4.2 V (2.5 V with bias) to 30 V (42-V maximum)
Flexible V_OUT: 0.8 V to 30 V
V_OUT 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 input UVLO and soft start
Power good and output overvoltage protection
Available in 28-pin HTSSOP package with PowerPAD™
Create a custom design using the LM34936-Q1 with the WEBENCH Power Designer

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to 125°C T_A
Single inductor buck-boost controller for step-up or step-down DC/DC conversion
Wide V_IN: 4.2 V (2.5 V with bias) to 30 V (42-V maximum)
Flexible V_OUT: 0.8 V to 30 V
V_OUT 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 input UVLO and soft start
Power good and output overvoltage protection
Available in 28-pin HTSSOP package with PowerPAD™
Create a custom design using the LM34936-Q1 with the WEBENCH Power Designer

The LM34936-Q1 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The device 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-Q1 uses 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-Q1 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-Q1 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The device 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-Q1 uses 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-Q1 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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重要文件	類型	標題	格式選項	下載最新的英文版本		日期
*	資料表	LM34936-Q1 30-V Wide VIN Synchronous Four-Switch Buck-Boost Controller datasheet (Rev. A)	PDF \| HTML			2021/9/14
	應用說明	LM5176 Power Sharing Between Two Parallel, Four-Switch Buck-Boost Converters				2018/7/16

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開發板

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使用指南: PDF

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