Series: -
Number of Outputs: 2
Buck: Yes
Inverting: No
Doubler: No
Divider: No
Cuk: No
Isolated: No
Package / Case: 16-SOIC (0.154", 3.90mm Width)
PWM Type: Current Mode
Duty Cycle: 100%
Operating Temperature: -40°C ~ 85°C
Packaging: Tube
Boost: No
Flyback: No
Voltage - Supply: 3.5 V ~ 16 V
Frequency - Max: 400kHz
Manufacturer: Linear Technology
Pinout
DescriptionThe LTC1143CS is one member of the LTC1143 family which is designed as the dual high efficiency step-down switching regulator controller that can be used in (1)notebook and palmtop computers; (2)battery-operated digital devices; (3)portable instruments; (4)DC power distribution systems. Also this device is ideal for applications requiring dual output voltages with high conversion efficiencies over a wide load current range in a small amount of board space.
Features of the LTC1143CS are:(1)dual outputs: 3.3V and 5.0V; (2)very high efficiency: over 95% possible; (3)current mode operation for excellent line and load transient response; (4)high efficiency maintained over 3 decades of output current; (5)low standby current at light loads: 160mA/output; (6)independ-ent micropower shutdown: IQ < 40mA; (7)wide VIN range: 4V to 16V; (8)very low dropout operation: 100% duty cycle; (9)available in narrow 16-Pin SOIC package.
The absolute maximum ratings of the LTC1143CS can be summarized as:(1)continuous output current (pins 4,12):50 mA;(2)input supply voltage (pins 5,13): 16V to -0.3V;(3)sense voltages (pins 1, 8, 9, 16):13V to -0.3V;(4)operating ambient temperature range:0°C to 70°C;(5)extended commercial temperature range:-40°C to 85°C;(6)junction temperature:125°C;(7)storage temperature range:-65°C to 150°C;(8)lead temperature (soldering, 10 sec):300°C. If you want to know more information such as the electrical characteristics about the LTC1143CS, please download the datasheet in www.seekic.com or www.chinaicmart.com.
Parameters: | Technical/Catalog Information | LTC1143CS |
| Vendor | Linear Technology |
| Category | Integrated Circuits (ICs) |
| Type | Step-Down (Buck) |
| Number of Outputs | 2 |
| Voltage - Input | 3.5 ~ 16 V |
| Voltage - Output | 3.3V, 5V |
| Current - Output | 50mA |
| Power - Output | - |
| Package / Case | 16-SOIC (3.9mm Width) |
| Packaging | Tube |
| Internal Switch(s) | No |
| Synchronous | No |
| Rds (On) | - |
| Operating Temperature | -40°C ~ 85°C |
| Frequency - Switching | 400kHz |
| Drawing Number | 161; 05-08-1610; S; 8 |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | LTC1143CS
LTC1143CS
|
LTC1143CS Data Sheet
