logo

LTC1149 Linear Technology High Efficiency Synchronous Step-Down Switching Regulators Datasheet

LTC1149CS#PBF DC/DC CONV, SYNC BUCK, 250KHZ, 70DEG C


Linear Technology
LTC1149
Part Number LTC1149
Manufacturer Linear Technology
Description LTC1149 LTC1149-3.3/LTC1149-5 High Efficiency Synchronous Step-Down Switching Regulators FEATURES s s s DESCRIPTIO s s s s s s s Operation to 48V Input Voltage Ultrahigh Efficiency: Up to 95% Current Mode Operation for Excellent Line and Load Transient Response High Efficiency Maintained over Wid...
Features s s s DESCRIPTIO s s s s s s s Operation to 48V Input Voltage Ultrahigh Efficiency: Up to 95% Current Mode Operation for Excellent Line and Load Transient Response High Efficiency Maintained over Wide Current Range Logic-Controlled Micropower Shutdown Short-Circuit Protection Very Low Dropout Operation: 100% Duty Cycle Synchronous FET Switching for High Efficiency Adaptive Nonoverlap Gate Drives Available in 16-Pin Narrow SO Package The LTC ®1149 series is a family of synchronous stepdown switching regulator controllers featuring automatic Burst ModeTM operation to maintain high efficienci...

Document Datasheet LTC1149 datasheet pdf (389.96KB)
Distributor Distributor
element14 Asia-Pacific
Stock 100 In stock
Price
500 units: 13747 KRW
250 units: 14691 KRW
100 units: 15447 KRW
50 units: 17537 KRW
10 units: 18293 KRW
1 units: 19898 KRW
BuyNow BuyNow BuyNow (Manufacturer a Analog Devices Inc)


Similar Datasheet

Part Number Description
LTC1100
manufacturer
Linear Technology
Zero-Drift Instrumentation Amplifier
LTC1100 Precision, Zero-Drift Instrumentation Amplifier U U FEATURES ■ Offset Voltage: 10µV Max ■ Offset Voltage Drift: 100nV/°C Max ■ Bias Current: 65pA Max ■ Offset Current: 65pA Max ■ Gain Nonlinearity: 20ppm Max ■ Gain Error: ±0.075% Max ■ CMRR: 90dB ■ 0.1Hz to 10Hz Noise: 1.9µVP-P ■ Single 5V Supply Operation ■ 8-Pin MiniDIP U APPLICATIO S ■ Thermocouple Amplifiers ■ Strain Gauge Amplifiers ■ Differential to Single-Ended Converters TYPICAL APPLICATIO DESCRIPTIO The LTC®1100 is a high precision instrumentation amplifier using zero-drift techniques to achieve outstanding DC performance. The input DC offset is typically 1µV while the DC offset drift is typically 5nV/°C; a very low bias ...
LTC1142
manufacturer
Linear Technology
Dual High Efficiency Synchronous Step-Down Switching Regulators
U U FEATURES s Dual Outputs: 3.3V and 5V or User Programmable s Ultrahigh Efficiency: Over 95% Possible s Current Mode Operation for Excellent Line and Load Transient Response s High Efficiency Maintained over 3 Decades of Output Current s Low Standby Current at Light Loads: 160µA/Output s Independent Micropower Shutdown: IQ < 40µA s Wide VIN Range: 3.5V to 20V s Very Low Dropout Operation: 100% Duty Cycle s Synchronous FET Switching for High Efficiency s Available in Standard 28-Pin SSOP U APPLICATIO S s Notebook and Palmtop Computers s Battery-Operated Digital Devices s Portable Instruments s DC Power Distribution Systems LTC1142/LTC1142L/LTC1142HV Dual High Efficiency Synchronous Step-D...
LTC1142HV
manufacturer
Linear Technology
Dual High Efficiency Synchronous Step-Down Switching Regulators
U U FEATURES s Dual Outputs: 3.3V and 5V or User Programmable s Ultrahigh Efficiency: Over 95% Possible s Current Mode Operation for Excellent Line and Load Transient Response s High Efficiency Maintained over 3 Decades of Output Current s Low Standby Current at Light Loads: 160µA/Output s Independent Micropower Shutdown: IQ < 40µA s Wide VIN Range: 3.5V to 20V s Very Low Dropout Operation: 100% Duty Cycle s Synchronous FET Switching for High Efficiency s Available in Standard 28-Pin SSOP U APPLICATIO S s Notebook and Palmtop Computers s Battery-Operated Digital Devices s Portable Instruments s DC Power Distribution Systems LTC1142/LTC1142L/LTC1142HV Dual High Efficiency Synchronous Step-D...
LTC1142L
manufacturer
Linear Technology
Dual High Efficiency Synchronous Step-Down Switching Regulators
U U FEATURES s Dual Outputs: 3.3V and 5V or User Programmable s Ultrahigh Efficiency: Over 95% Possible s Current Mode Operation for Excellent Line and Load Transient Response s High Efficiency Maintained over 3 Decades of Output Current s Low Standby Current at Light Loads: 160µA/Output s Independent Micropower Shutdown: IQ < 40µA s Wide VIN Range: 3.5V to 20V s Very Low Dropout Operation: 100% Duty Cycle s Synchronous FET Switching for High Efficiency s Available in Standard 28-Pin SSOP U APPLICATIO S s Notebook and Palmtop Computers s Battery-Operated Digital Devices s Portable Instruments s DC Power Distribution Systems LTC1142/LTC1142L/LTC1142HV Dual High Efficiency Synchronous Step-D...
LTC1143
manufacturer
Linear Technology
Dual High Efficiency SO-16 Step-Down Switching Regulator Controllers
The LTC1143 series is a dual step-down switching regulator controller featuring automatic Burst ModeTM operation to maintain high efficiencies at low output currents. This device is composed of two separate regulator blocks, each driving an external power MOSFET at switching frequencies up to 400kHz using a constant off-time current mode architecture. Both fixed and adjustable voltages are available. The operating current level for both regulators is userprogrammable via an external current sense resistor. Wide input supply range allows operation from 4V to 14V (16V maximum). The LTC1143L and LTC1143L-ADJ extend operation to VIN = 3.5V. 100% duty cycle provides low dropout regulation limited...
LTC1143L
manufacturer
Linear Technology
Dual High Efficiency SO-16 Step-Down Switching Regulator Controllers
The LTC1143 series is a dual step-down switching regulator controller featuring automatic Burst ModeTM operation to maintain high efficiencies at low output currents. This device is composed of two separate regulator blocks, each driving an external power MOSFET at switching frequencies up to 400kHz using a constant off-time current mode architecture. Both fixed and adjustable voltages are available. The operating current level for both regulators is userprogrammable via an external current sense resistor. Wide input supply range allows operation from 4V to 14V (16V maximum). The LTC1143L and LTC1143L-ADJ extend operation to VIN = 3.5V. 100% duty cycle provides low dropout regulation limited...
LTC1143L-ADJ
manufacturer
Linear Technology
Dual High Efficiency SO-16 Step-Down Switching Regulator Controllers
The LTC1143 series is a dual step-down switching regulator controller featuring automatic Burst ModeTM operation to maintain high efficiencies at low output currents. This device is composed of two separate regulator blocks, each driving an external power MOSFET at switching frequencies up to 400kHz using a constant off-time current mode architecture. Both fixed and adjustable voltages are available. The operating current level for both regulators is userprogrammable via an external current sense resistor. Wide input supply range allows operation from 4V to 14V (16V maximum). The LTC1143L and LTC1143L-ADJ extend operation to VIN = 3.5V. 100% duty cycle provides low dropout regulation limited...
LTC1144
manufacturer
Linear Technology
Switched-Capacitor Wide Input Range Voltage Converter
The LTC®1144 is a monolithic CMOS switched-capacitor voltage converter. It performs supply voltage conversion from positive to negative from an input range of 2V to 18V, resulting in complementary output voltages of –2V to –18V. Only two noncritical external capacitors are needed for the charge pump and charge reservoir functions. The converter has an internal oscillator that can be overdriven by an external clock or slowed down when connected to a capacitor. The oscillator runs at a 10kHz frequency when unloaded. A higher frequency outside the audio band can also be obtained if the Boost Pin is tied to V+. The SHDN pin reduces supply current to 8µA and can be used to save power when the con...
LTC1147-3.3
manufacturer
Linear Technology
High Efficiency Step-Down Switching Regulator Controllers
LTC1147-3.3 LTC1147-5/LTC1147L High Efficiency Step-Down Switching Regulator Controllers FEATURES s s s DESCRIPTIO s s s s s s s s Very High Efficiency: Over 95% Possible Wide VIN Range: 3.5V* to 16V Current Mode Operation for Excellent Line and Load Transient Response High Efficiency Maintained Over Three Decades of Output Current Low 160µA Standby Current at Light Loads Logic Controlled Micropower Shutdown: IQ < 20µA Short-Circuit Protection Very Low Dropout Operation: 100% Duty Cycle High Efficiency in a Small Amount of Board Space Output Can Be Externally Held High in Shutdown Available in 8-Pin SO Package The LTC®1147 series are step-down switching regulator controllers featuring ...
LTC1147-5
manufacturer
Linear Technology
High Efficiency Step-Down Switching Regulator Controllers
LTC1147-3.3 LTC1147-5/LTC1147L High Efficiency Step-Down Switching Regulator Controllers FEATURES s s s DESCRIPTIO s s s s s s s s Very High Efficiency: Over 95% Possible Wide VIN Range: 3.5V* to 16V Current Mode Operation for Excellent Line and Load Transient Response High Efficiency Maintained Over Three Decades of Output Current Low 160µA Standby Current at Light Loads Logic Controlled Micropower Shutdown: IQ < 20µA Short-Circuit Protection Very Low Dropout Operation: 100% Duty Cycle High Efficiency in a Small Amount of Board Space Output Can Be Externally Held High in Shutdown Available in 8-Pin SO Package The LTC®1147 series are step-down switching regulator controllers featuring ...




logo    Since 2024. D4U Semiconductor.   |   Contact Us   |   Privacy Policy