LM2731

現行

含 22V 內部 FET 開關並採用 SOT-23 封裝的 0.6/1.6 MHz 升壓轉換器

立即訂購

產品規格表

document-pdfAcrobat LM2731 0.6/1.6-MHz Boost Converters With 22-V Internal FET Switch in SOT-23 datasheet (Rev. G) (英文) PDF | HTML

LM2731

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Boost

Type

Converter

Vin (min) (V)

2.7

Vin (max) (V)

14

Switching frequency (min) (kHz)

600

Switching frequency (max) (kHz)

1600

Features

Enable, Nonsynchronous rectification

Vout (min) (V)

1.23

Vout (max) (V)

22

Iq (typ) (µA)

2000

Duty cycle (max) (%)

93

Switch current limit (typ) (A)

1.5

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Boost

Type

Converter

Vin (min) (V)

2.7

Vin (max) (V)

14

Switching frequency (min) (kHz)

600

Switching frequency (max) (kHz)

1600

Features

Enable, Nonsynchronous rectification

Vout (min) (V)

1.23

Vout (max) (V)

22

Iq (typ) (µA)

2000

Duty cycle (max) (%)

93

Switch current limit (typ) (A)

1.5

SOT-23 (DBV)

5

8.12 mm² 2.9 x 2.8

22-V DMOS FET Switch
1.6-MHz (X Option), 0.6-MHz (Y Option)
Switching Frequency
Low R_DS(ON) DMOS FET
Switch Current Up to 1.8 A
Wide Input Voltage Range (2.7 V to 14 V)
Low Shutdown Current (<1 µA)
5-Lead SOT-23 Package
Uses Tiny Capacitors and Inductors
Cycle-by-Cycle Current Limiting
Internally Compensated

22-V DMOS FET Switch
1.6-MHz (X Option), 0.6-MHz (Y Option)
Switching Frequency
Low R_DS(ON) DMOS FET
Switch Current Up to 1.8 A
Wide Input Voltage Range (2.7 V to 14 V)
Low Shutdown Current (<1 µA)
5-Lead SOT-23 Package
Uses Tiny Capacitors and Inductors
Cycle-by-Cycle Current Limiting
Internally Compensated

The LM2731 switching regulators are current-mode boost converters operating at fixed frequencies of 1.6 MHz (X option) and 600 kHz (Y option).

The use of SOT-23 package, made possible by the minimal power loss of the internal 1.8-A switch, and use of small inductors and capacitors result in the highest power density of the industry. The 22-V internal switch makes these solutions perfect for boosting to voltages up to 20 V.

These parts have a logic-level shutdown pin that can reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

The LM2731 switching regulators are current-mode boost converters operating at fixed frequencies of 1.6 MHz (X option) and 600 kHz (Y option).

The use of SOT-23 package, made possible by the minimal power loss of the internal 1.8-A switch, and use of small inductors and capacitors result in the highest power density of the industry. The 22-V internal switch makes these solutions perfect for boosting to voltages up to 20 V.

These parts have a logic-level shutdown pin that can reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

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檢視所有 3

	類型	標題		日期
*	Data sheet	LM2731 0.6/1.6-MHz Boost Converters With 22-V Internal FET Switch in SOT-23 datasheet (Rev. G)	PDF \| HTML	2015年 9月 30日
	Selection guide	Power Management Guide 2018 (Rev. R)		2018年 6月 25日
	EVM User's guide	AN-1280 LM2731/LM2733 Evaluation Board (Rev. B)		2013年 4月 24日