Series: -
Buck: Yes
Inverting: No
Doubler: No
Divider: No
Cuk: No
Isolated: No
Operating Temperature: 0°C ~ 70°C
PWM Type: Current Mode
Number of Outputs: 1
Duty Cycle: 100%
Packaging: Tube
Frequency - Max: -
Boost: No
Flyback: No
Package / Case: 8-DIP (0.300", 7.62mm)
Manufacturer: Linear Technology
Voltage - Supply: 3.5 V ~ 14 V
Pinout
DescriptionThe LTC1147CN8-3.3 is one member of the LTC1147 family which is designed as the high efficiency step-down switching regulator controller that can be used in (1)notebook and palmtop computers; (2)portable instruments; (3)battery-operated digital devices; (4)cellular telephones; (5)DC power distribution systems; (6)GPS systems. And this device incorporates automatic power saving Burst Mode operation to reduce switching losses when load currents drop below the level required for continuous operation.
Features of the LTC1147CN8-3.3 are:(1)very high efficiency: over 95% possible; (2)wide VIN range: 3.5V to 16V; (3)current mode operation for excellent line and load transient response; (4)high efficiency maintained over three decades of output current; (5)low 160mA standby current at light loads; (6)logic controlled micropower shutdown: IQ < 20mA; (7)short-circuit protection; (8)very low dropout operation: 100% duty cycle; (9)high efficiency in a small amount of board space; (10)output can be externally held high in shutdown; (11)available in 8-pin SO package.
The absolute maximum ratings of the LTC1147CN8-3.3 can be summarized as:(1)input supply voltage:16V to -0.3V;(2)continuous output current:50 mA;(3)sense voltages (pins 4, 5):10V 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 LTC1147CN8-3.3, please download the datasheet in www.seekic.com or www.chinaicmart.com.
Parameters: | Technical/Catalog Information | LTC1147CN8-3.3 |
| Vendor | Linear Technology |
| Category | Integrated Circuits (ICs) |
| Type | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage - Input | 3.5 ~ 14 V |
| Voltage - Output | 3.3V |
| Current - Output | 50mA |
| Power - Output | - |
| Package / Case | 8-DIP (300 mil) |
| Packaging | Tube |
| Internal Switch(s) | No |
| Synchronous | No |
| Rds (On) | - |
| Operating Temperature | 0°C ~ 70°C |
| Frequency - Switching | 400kHz |
| Drawing Number | 161; 05-08-1510; N; 8 |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | LTC1147CN8 3 3
LTC1147CN833
|
LTC1147CN8-3.3 Data Sheet
