方案
设计
The NCV891930 is a 2 MHz fixed−frequency low quiescent current buck controller with spread spectrum that operates up to 38 V (typical). It may be synchronized to a clock or to separate NCV891930. Peak current mode control is employed for fast transient response and tight regulation over wide input voltage and output load ranges. Feedback compensation is internal to the device, permitting design simplification. The NCV891930 is capable of converting from an automotive input voltage range of 3.5 V (4.5 V during startup) to 18 V at a constant base switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures. The switching frequency folds back to 1 MHz for input voltages between 20 V up to 38 V (typical). Under load dump conditions up to 45 V the regulator shuts down. A high voltage bias regulator with automatic switchover to an external 5 V bias supply is used for improved efficiency. Several protection features such as UVLO, current limit, short circuit protection, and thermal shutdown are provided. High switching frequency produces low output voltage ripple even when using small inductor values and an all−ceramic output filter capacitor, forming a space−efficient switching solution.(410 kHz version offered with NCV881930)
应用
终端产品
特性
搜寻
Close Search
产品:
4
Share
排序方式
Product Groups:
┗
Orderable Parts:
4
产品
状况
CAD Models
Compliance
Package Type
Case Outline
MSL Type
MSL Temp (°C)
Container Type
Container Qty.
ON Target
Topology
Phases
Control Mode
VCC Min (V)
VCC Max (V)
fSW Typ (kHz)
Pricing ($/Unit)
NCV891930MW01AR2G
Active
Pb
A
H
P
QFNW-24
1
260
REEL
4000
F
Step-Down
1
Current/Voltage Mode
3.5
45
2000
$1.5056
More Details
NCV891930MW00AR2G
Active
Pb
A
H
P
QFNW-24
1
260
REEL
4000
F
Step-Down
1
Current/Voltage Mode
3.5
45
2000
$1.5056
More Details
NCV891930MW00R2G
Last Shipments
Pb
A
H
P
QFNW-24
1
260
REEL
4000
N
Step-Down
1
Current/Voltage Mode
3.5
45
2000
Price N/A
More Details
NCV891930MW01R2G
Last Shipments
Pb
A
H
P
QFNW-24
1
260
REEL
4000
N
Step-Down
1
Current/Voltage Mode
3.5
45
2000
Price N/A
More Details
Show More
1-25 of 25
Products per page
Jump to :
Share
Export
Rows
Printer Friendly Version
PDF Format
Excel Format
CSV Format
Hello, your current browser settings are preventing us from processing your submission. You can adjust your browser settings and reload the page or you can submit an email directly to inside.sales@onsemi.com
You might also try the following: