The LM26001 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 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

The LM26001 can deliver up to 1.5 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.

For all available packages, see the orderable addendum at the end of the datasheet.

• LM26001-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-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
• HTSSOP-16 Exposed Pad Package
• Thermal Shut Down

• Vin (Min) (V)
• 3
• Vin (Max) (V)
• 38
• Vout (Min) (V)
• 1.25
• Vout (Max) (V)
• 35
• Iout (Max) (A)
• 1.5
• Iq (Typ) (uA)
• 38
• Switching frequency (Min) (kHz)
• 150
• Switching frequency (Max) (kHz)
• 500
• Features
• Enable, Forced PWM, Frequency Synchronization, Light Load Efficiency, Over Current Protection, Power Good
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• Current Mode
• Duty cycle (Max) (%)
• 98

LM26001的完整型号有：LM26001MXA/NOPB、LM26001MXAX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM26001MXA/NOPB，工作温度：-40 to 125，封装：HTSSOP (PWP)-16，包装数量MPQ：92个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM26001MXA/NOPB的批量USD价格：1.452（1000+）

LM26001MXAX/NOPB，工作温度：-40 to 125，封装：HTSSOP (PWP)-16，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM26001MXAX/NOPB的批量USD价格：1.21（1000+）

LM26001EVAL — 具有高效休眠模式的 1.5A 开关稳压器

LM26001 1.5A Switching Regulator with High Efficiency Sleep Mode

LM26001 PSpice Average Model

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PMP9397 — CISPR 25 5 类 3.3W 额定功率的汽车类电源参考设计

PMP9397 参考设计提供了针对汽车应用的传导 EMI 优化 3.3W 电源设计。此设计采用非同步降压稳压器 LM26001 来生成 3.3V/1A 输出。输入电压范围介于 4.5V 到 38V 之间，适用于汽车电池电源。此参考设计附带输入 EMI 滤波器级来抑制输入电源线中的开关噪声，且该电路板经测试符合 CISPR 25 5 类传导发射标准。