LM26003 - 具有高效休眠模式的 3A 开关稳压器

LM26003是TI德州仪器公司的一款转换器（集成开关）产品，LM26003是具有高效休眠模式的 3A 开关稳压器，本站介绍了LM26003的封装应用图解、特点和优点、功能等，并给出了与LM26003相关的TI元器件型号供参考。

LM26003 - 具有高效休眠模式的 3A 开关稳压器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

LM26003-Q1 is an Automotive-Grade Product That is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Operating Junction Temperature)
High-Efficiency Sleep Mode
40-µA Typical Iq in Sleep Mode
10.8-µA Typical Iq in Shutdown Mode
3.0-V Minimum Input Voltage
4.0-V to 38-V Continuous Input Range
1.5% Reference Accuracy
Cycle-by-Cycle Current Limit
Adjustable Frequency (150 kHz to 500 kHz)
Synchronizable to an External Clock
Power Good Flag
Forced PWM Function
Adjustable Soft-Start
20-Pin HTSSOP Package
Thermal Shut Down

产品应用

Automotive Telematics
Navigation Systems
In-Dash Instrumentation
Battery-Powered Applications
Standby Power for Home Gateways and Set-Top Boxes

产品说明

The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients.

Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.

Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM26003	HTSSOP (20)	6.50 mm x 4.40 mm
LM26003-Q1	HTSSOP (20)	6.50 mm x 4.40 mm

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