Datasheet > LM2622

LM2622

更新时间： 2024-10-03 02:58:27

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描述
LM2622 600kHz/1.3MHz Step-up PWM DC/DC Converter

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替代型号

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LM2622 数据手册

LM2622

www.ti.com

SNVS068E –MAY 2000–REVISED MARCH 2013

LM2622 600kHz/1.3MHz Step-up PWM DC/DC Converter

Check for Samples: LM2622

FEATURES

DESCRIPTION

The LM2622 is a step-up DC/DC converter with a

1.6A, 0.2Ω internal switch and pin selectable

operating frequency. With the ability to convert 3.3V

to multiple outputs of 8V, -8V, and 23V, the LM2622

is an ideal part for biasing TFT displays. The LM2622

can be operated at switching frequencies of 600kHz

and 1.3MHz allowing for easy filtering and low noise.

An external compensation pin gives the user flexibility

in setting frequency compensation, which makes

possible the use of small, low ESR ceramic

capacitors at the output. The LM2622 is available in a

low profile 8-lead VSSOP package.

•

1.6A, 0.2Ω, Internal Switch

Operating Voltage as Low as 2.0V

600kHz/1.3MHz Pin Selectable Frequency

Operation

•

Over Temperature Protection

8-Lead VSSOP Package

APPLICATIONS

•

TFT Bias Supplies

Handheld Devices

Portable Applications

GSM/CDMA Phones

Digital Cameras

Typical Application Circuit

2.7V - 3.3V

10uH

V_IN

FSLCT

R_FB!

40.2k

LM2622

Battery or

Power

SHDN

V_C

GND

C_IN

Source

22UF

R_C

24k

R_FB2

7.5k

C_OUT

22uF

C_C

2.2nF

Figure 1. 600 kHz Operation

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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LM2622 替代型号

型号	品牌	替代类型	描述	数据表
LM3224	TI	功能相似	615kHz/1.25MHz 升压 PWM 直流/直流转换器

与LM2622相关器件

型号	品牌	获取价格	描述	数据表
LM2622_04	NSC	获取价格	600kHz/1.3MHz Step-up PWM DC/DC Converter
LM2622_15	TI	获取价格	LM2622 600kHz/1.3MHz Step-up PWM DC/DC Converter
LM2622-ADJMDC	NSC	获取价格	IC 2.3 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator o
LM2622MM-ADJ	NSC	获取价格	600kHz/1.3MHz Step-up PWM DC/DC Converter
LM2622MM-ADJ/NOPB	TI	获取价格	LM2622 600kHz/1.3MHz Step-up PWM DC/DC Converter
LM2622MMX-ADJ	NSC	获取价格	600kHz/1.3MHz Step-up PWM DC/DC Converter
LM2622MMX-ADJ/NOPB	ROCHESTER	获取价格	2.3A SWITCHING REGULATOR, 1500kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8
LM2622MMX-ADJ/NOPB	TI	获取价格	LM2622 600kHz/1.3MHz Step-up PWM DC/DC Converter
LM2623	TI	获取价格	LM2623 General Purpose, Gated Oscillator Based, DC/DC Boost Converter
LM2623	NSC	获取价格	General Purpose, Gated Oscillator Based, DC/DC Boost Converter