Series: -
PWM Type: Voltage Mode
Buck: Yes
Inverting: No
Doubler: No
Divider: No
Cuk: No
Isolated: No
Operating Temperature: 0°C ~ 70°C
Package / Case: 16-SOIC (0.154", 3.90mm Width)
Number of Outputs: 1
Packaging: Tube
Boost: No
Flyback: No
Duty Cycle: 93%
Manufacturer: Linear Technology
Frequency - Max: 260kHz
Voltage - Supply: 2.7 V ~ 5 V
Pinout
DescriptionThe LTC1649CS is one member of the LTC1649 family which is designed as the high power, high efficiency switching regulator controller. It can be used in (1)3.3V input power supply for low voltage microprocessors and logic; (2)low input voltage power supplies; (3)high power, low voltage regulators; (4)local regulation for multiple voltage distributed power systems. And this device uses a 200kHz switching frequency and voltage mode control, minimizing external component count and size.
Features of the LTC1649CS are:(1)high power 3.3V to 1.xV-2.xV switching regulator controller: up to 20A output; (2)all N-channel external MOSFETs; (3)provides 5V MOSFET gate drive with 3.3V input; (4)constant frequency operation minimizes inductor size; (5)excellent output regulation: ±1% over line, load and temperature variations; (6)high efficiency: over 90% possible; (7)no low-value sense resistor needed; (8)available in 16-lead SO package.
The absolute maximum ratings of the LTC1649CS can be summarized as:(1)supply voltage (VIN):6 V;(2)supply voltage (Vcc):9 V;(3)supply voltage (Pvcc1, 2):13 V;(4)input voltage (IFB):-0.3V to 18V;(5)input voltage (C+,C-):-0.3V to (VIN+0.3V);(6)input voltage (all other inputs):-0.3V to (Vcc+0.3V);(7)operating temperature range:0°C to 70°C;(8)storage temperature range:-65°C to 150°C;(9)lead temperature (soldering, 10 sec):300°C. If you want to know more information such as the electrical characteristics about the LTC1649CS, please download the datasheet in www.seekic.com or www.chinaicmart.com.
Parameters: | Technical/Catalog Information | LTC1649CS |
| Vendor | Linear Technology |
| Category | Integrated Circuits (ICs) |
| Type | Switched Capacitor (Charge Pump), Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage - Input | 2.7 ~ 5 V |
| Voltage - Output | 1.26 ~ 2.5 V |
| Current - Output | 20A |
| Power - Output | - |
| Package / Case | 16-SOIC (3.9mm Width) |
| Packaging | Tube |
| Internal Switch(s) | No |
| Synchronous | Yes |
| Rds (On) | - |
| Operating Temperature | 0°C ~ 70°C |
| Frequency - Switching | 200kHz |
| Drawing Number | 161; 05-08-1610; S; 8 |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | LTC1649CS
LTC1649CS
|
LTC1649CS Data Sheet
