LM25005

現行

7-42V 大範圍 Vin、2.5A 電流模式非同步降壓穩壓器

立即訂購

產品規格表

document-pdfAcrobat LM25005 42V, 2.5A Step-Down Switching Regulator datasheet (Rev. D) (英文) PDF | HTML

LM25005

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck

Iout (max) (A)

2.5

Vin (max) (V)

42

Vin (min) (V)

7

Vout (max) (V)

37

Vout (min) (V)

1.23

Features

Enable, Frequency synchronization, Overcurrent protection

Control mode

current mode

Switching frequency (min) (kHz)

50

Switching frequency (max) (kHz)

500

Operating temperature range (°C)

-40 to 125

Iq (typ) (µA)

3000

Duty cycle (max) (%)

98

Type

Converter

Rating

Catalog

Topology

Buck

Iout (max) (A)

2.5

Vin (max) (V)

42

Vin (min) (V)

7

Vout (max) (V)

37

Vout (min) (V)

1.23

Features

Enable, Frequency synchronization, Overcurrent protection

Control mode

current mode

Switching frequency (min) (kHz)

50

Switching frequency (max) (kHz)

500

Operating temperature range (°C)

-40 to 125

Iq (typ) (µA)

3000

Duty cycle (max) (%)

98

Type

Converter

HTSSOP (PWP)

20

41.6 mm² 6.5 x 6.4

Integrated 42V, 160mΩ N-channel MOSFET
Ultra-wide input voltage range: from 7V to 42V
Internal bias regulator
Adjustable output voltage: from 1.225V
Feedback reference accuracy: 1.5%
Current mode control with emulated inductor current ramp
Single resistor oscillator frequency setting
Oscillator synchronization input
Programmable soft-start
Shutdown and standby input
Wide bandwidth error amplifier
Thermal shutdown

Integrated 42V, 160mΩ N-channel MOSFET
Ultra-wide input voltage range: from 7V to 42V
Internal bias regulator
Adjustable output voltage: from 1.225V
Feedback reference accuracy: 1.5%
Current mode control with emulated inductor current ramp
Single resistor oscillator frequency setting
Oscillator synchronization input
Programmable soft-start
Shutdown and standby input
Wide bandwidth error amplifier
Thermal shutdown

The LM25005 switching regulator features all of the functions necessary to implement an efficient, high voltage buck regulator using a minimum of external components. This easy to use regulator includes a 42V, 160mΩ, N-channel MOSFET, with an output current capability of 2.5A.

The regulator control method is based upon current mode control using an emulated current ramp. Current mode control provides inherent line voltage feed-forward, cycle-by-cycle current limiting, and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications.

The operating frequency is programmable from 50kHz to 500kHz. An oscillator synchronization pin allows multiple LM25005 regulators to self-synchronize or synchronize to an external clock.

Additional protection features include current limit, thermal shutdown, and remote shutdown capability. The device is available in a power-enhanced HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.

The LM25005 switching regulator features all of the functions necessary to implement an efficient, high voltage buck regulator using a minimum of external components. This easy to use regulator includes a 42V, 160mΩ, N-channel MOSFET, with an output current capability of 2.5A.

The regulator control method is based upon current mode control using an emulated current ramp. Current mode control provides inherent line voltage feed-forward, cycle-by-cycle current limiting, and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications.

The operating frequency is programmable from 50kHz to 500kHz. An oscillator synchronization pin allows multiple LM25005 regulators to self-synchronize or synchronize to an external clock.

Additional protection features include current limit, thermal shutdown, and remote shutdown capability. The device is available in a power-enhanced HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.

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	類型	標題		日期
*	Data sheet	LM25005 42V, 2.5A Step-Down Switching Regulator datasheet (Rev. D)	PDF \| HTML	2025年 12月 2日
	White paper	Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A)		2018年 7月 3日
	Selection guide	Power Management Guide 2018 (Rev. R)		2018年 6月 25日
	White paper	Buck regulator topologies for wide input/output voltage differentials (Rev. A)		2016年 9月 15日