Datasheet > LM25005_06

LM25005_06

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器开关
页数	文件大小	规格书
22页	413K
描述
42V, 2.5A Step-Down Switching Regulator

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LM25005_06 数据手册

BST to SW

OUT to GND

SD, SYNC, SS, FB to GND

ESD Rating (Note 2)

Human Body Model

Storage Temperature Range

14V

Limited to Vin

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

2kV

V_INto GND

45V

60V

45V

-1.5V

45V

14V

-65°C to +150°C

BST to GND

PRE to GND

Operating Ratings (Note 1)

V_IN

SW to GND (Steady State)

BST to V_CC

7V to 42V

−40°C to + 125°C

Operation Junction Temperature

V_CCto GND

Electrical Characteristics Specifications with standard typeface are for T_J= 25°C, and those with boldface type

apply over full Operating Junction Temperature range. V_IN= 24V, R_T= 32.4kΩ unless otherwise stated. (Note 3)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

STARTUP REGULATOR

VccReg

Vcc Regulator Output

Vcc LDO Mode turn-off

6.85

7.15

7.45

Vcc Current Limit

Vcc = 0V

VCC SUPPLY

Vcc UVLO Threshold

Vcc Undervoltage Hysteresis

Bias Current (Iin)

(Vcc increasing)

5.95

6.35

6.75

FB = 1.3V

SD = 0V

4.5

µA

Shutdown Current (Iin)

SHUTDOWN THRESHOLDS

Shutdown Threshold

(SD Increasing)

0.5

0.7

0.1

0.9

Shutdown Hysteresis

Standby Threshold

(Standby Increasing)

1.18

1.225

0.1

1.27

Standby Hysteresis

SD Pull-up Current Source

µA

SWITCH CHARACTERSICS

Buck Switch Rds(on)

BOOST UVLO

160

3.8

320

mΩ

BOOST UVLO Hysteresis

Pre-charge Switch Rds(on)

Pre-charge Switch on-time

0.56

Ω

275

CURRENT LIMIT

Cycle by Cycle Current Limit

RAMP = 0V

3.5

4.25

Cycle by Cycle Current Limit Delay

RAMP = 2.5V

100

SOFT-START

OSCILLATOR

SS Current Source

µA

Frequency1

180

425

200

485

220

525

KHz

Frequency2

RT = 11kΩ

SYNC Source Impedance

SYNC Sink Impedance

SYNC Threshold (falling)

Upper SYNC Frequency

SYNC Pulse Width Minimum

kΩ

160

1.4

Ω

550

KHz

www.national.com

1 2 3 456 7 8...22

下载PDF

与LM25005_06相关器件

型号	品牌	描述	获取价格	数据表
LM25005MH	NSC	42V, 2.5A Step-Down Switching Regulator	获取价格
LM25005MH	TI	7V 至 42V 宽输入电压、2.5A 电流模式非同步降压稳压器 \| PWP \| 20 \|	获取价格
LM25005MH/NOPB	TI	7V 至 42V 宽输入电压、2.5A 电流模式非同步降压稳压器 \| PWP \| 20 \|	获取价格
LM25005MHX	NSC	42V, 2.5A Step-Down Switching Regulator	获取价格
LM25005MHX/NOPB	NSC	IC 4.25 A SWITCHING REGULATOR, 525 kHz SWITCHING FREQ-MAX, PDSO20, TSSOP-20, Switching Reg	获取价格
LM25005MHX/NOPB	TI	7V 至 42V 宽输入电压、2.5A 电流模式非同步降压稳压器 \| PWP \| 20 \|	获取价格