LT1373HV - 250kHz Low Supply Current High Efficiency 1.5A Switching Regulator

LT1373 - 250kHz Low Supply Current High Efficiency 1.5A Switching Regulator - Linear Technology（凌力尔特）

The LT1373 is a low supply current high frequency current mode switching regulator. It can be operated in all standard switching configurations including boost, buck, flyback, forward, inverting and “Cuk.” A 1.5A high efficiency switch is included on the die, along with all oscillator, control and protection circuitry. All functions of the LT1373 are integrated into 8-pin SO/PDIP packages. Compared to the 500kHz LT1372, which draws 4mA of quiescent current, the LT1373 switches at 250kHz, typically consumes only 1mA and has higher efficiency. High frequency switching allows for small inductors to be used. All surface mount components consume less than 0.6 square inch of board space. New design techniques increase flexibility and maintain ease of use. Switching is easily synchronized to an external logic level source. A logic low on the shutdown pin reduces supply current to 12µA. Unique error amplifier circuitry can regulate positive or negative output voltage while maintaining simple frequency compensation techniques. Nonlinear error amplifier transconductance reduces output overshoot on start-up or overload recovery. Oscillator frequency shifting protects external components during overload conditions.

1mA IQ at 250kHz

Uses Small Inductors: 15µH

All Surface Mount Components

Only 0.6 Square Inch of Board Space

Low Minimum Supply Voltage: 2.7V

Constant Frequency Current Mode

Current Limited Power Switch: 1.5A

Regulates Positive or Negative Outputs

Shutdown Supply Current: 12µA Typ

Easy External Synchronization

8-Pin SO or PDIP Packages

Boost Regulators

CCFL Backlight Driver

Laptop Computer Supplies

Multiple Output Flyback Supplies

Inverting Supplies

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LT1373CN8	N-8	C	$4.30	$3.50
LT1373CN8#PBF	N-8	C	$4.30	$3.50
LT1373CS8	SO-8	C	$4.50	$3.65
LT1373CS8#PBF	SO-8	C	$4.50	$3.65
LT1373CS8#TR	SO-8	C		$3.71
LT1373CS8#TRPBF	SO-8	C		$3.71
LT1373HVCN8	N-8	C	$4.75	$3.80
LT1373HVCN8#PBF	N-8	C	$4.75	$3.80
LT1373HVCS8	SO-8	C	$4.90	$3.95
LT1373HVCS8#PBF	SO-8	C	$4.90	$3.95
LT1373HVCS8#TR	SO-8	C		$4.01
LT1373HVCS8#TRPBF	SO-8	C		$4.01
LT1373HVIN8	N-8	I	$5.65	$4.55
LT1373HVIN8#PBF	N-8	I	$5.65	$4.55
LT1373HVIS8	SO-8	I	$5.80	$4.65
LT1373HVIS8#PBF	SO-8	I	$5.80	$4.65
LT1373HVIS8#TR	SO-8	I		$4.71
LT1373HVIS8#TRPBF	SO-8	I		$4.71
LT1373IN8	N-8	I	$5.25	$4.20
LT1373IN8#PBF	N-8	I	$5.25	$4.20
LT1373IS8	SO-8	I	$5.40	$4.35
LT1373IS8#PBF	SO-8	I	$5.40	$4.35
LT1373IS8#TR	SO-8	I		$4.41
LT1373IS8#TRPBF	SO-8	I		$4.41

LT1372 - 500kHz 及 1MHz 高效率 1.5A 开关稳压器

LT1170 - 100kHz、5A、2.5A 和 1.25A 高效率开关稳压器

LT3580 - 具 2A 开关、软起动和同步功能的升压/负输出 DC/DC 转换器

LT1172 - 100kHz、5A、2.5A 和 1.25A 高效率开关稳压器

LT1377 - 500kHz及1MHz高效率 1.5A开关稳压器

LT1308A - 大电流、微功率、单电池、600kHz DC/DC 变换器

LT3080 - 可调 1.1A、单电阻、低压差稳压器

LT1171 - 100kHz、5A、2.5A 和 1.25A 高效率开关稳压器

LTC3115-1 - 40V、2A、同步降压-升压型 DC/DC 转换器

LT1763 - 500mA、低噪声、LDO 微功率稳压器

• LTC3631 - LTC3631是高效率、高电压、100mA、同步降压型转换器
• LT4276 - LT4276是LTPoE++/PoE+/PoE PD 正激式 / 反激式控制器
• LTC5532EDC - LTC5532EDC是Precision 300MHz to 7GHz RF Detector with Gain and Offset Adjustment
• LTC4410 - LTC4410是USB Power Manager in ThinSOT
• LT6350 - LT6350是低噪声、单端至差分转换器 / ADC 驱动器
• LTC3727 - LTC3727是High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators
• RH1078MJ8 - RH1078MJ8是Micropower, Dual, Single Supply Precision Op Amp
• LTC489 - LTC489是四通道 RS485 线路接收器
• LT3652 - LT3652是用于太阳能电源的功率跟踪 2A 电池充电器
• LT1460MHS8-2.5 - LT1460MHS8-2.5是微功率、精准串联基准系列