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LM51772_V01中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書
LM51772_V01規(guī)格書詳情
1 Features
? Input range from 3.5V to 55V
? Output voltage 3.3V to 55V
? Dynamical Vo programming via I2C from 3.3V
– up to 48V in 20mV monotonous steps
– up to 24V in 10mV monotonous steps
? Peak current regulation scheme
? Small voltage transition ripple over all operating
modes
? Dynamic output voltage tracking (digital PWM
tracking input, analog tracking input)
– Via I2C interface programming
? Shut down quiescent current 3μA
? Operating quiescent current 60μA
? DRV pin for external FET control
? Operation mode selection for high efficiency in light
load and high load conditions:
– Power save mode (burst/μSleep)
– Automatic/programmable conduction mode
? Integrated high voltage supply LDO
? Axillary high voltage LDO/reference
? Integrated full-bridge gate drive
– 2A peak current capability
– Bootstrap over and under-voltage protection
– Integrated boot-strap diode
? Fixed frequency independent from operating mode
(boost, buck-boost, buck)
– Forced PWM mode selectable
– Switching frequency from 100kHz to 2.2MHz
– External clock synchronization and clock output
? Spread spectrum operation selectable
? High-side output current sensor
– Programmable from 1A to 7A in 50mA steps
– ISET pin selectable
? I2C Interface readout of (device configuration,
enhanced monitoring features, programmable
thermal warning)
? Create a custom design using the LM51772 with
the WEBENCH? Power Designer
2 Applications
? USB Type-C power delivery (Docking station, PCmonitor,
Desktop PC)
? Wireless charging
? Industrial PC/ Rugged PC
? Battery backup unit
? Merchant DC/DC
? avionics / marine sonar
? Off-highway vehicle
3 Description
The LM51772 is a four switch Buck-Boost controller.
It provides a regulated output voltage if the input
voltage is higher, equal or lower than the adjusted
output voltage. In power save mode the device
supports very high efficiency over the complete
operation range of the output. The LM51772 runs
at a fixed switching frequency, which can be set via
the RT/SYNC pin. The switching frequency remains
constant during buck, boost and buck-boost operation
in forced PWM. The external compensation pin allows
very fast transient responds for different applications.
(Continued)
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
TI(德州儀器) |
23+ |
WSON8 |
7350 |
現(xiàn)貨供應(yīng),當(dāng)天可交貨!免費(fèi)送樣,原廠技術(shù)支持!!! |
詢價(jià) | ||
TI(德州儀器) |
23+ |
NA/ |
8735 |
原廠直銷,現(xiàn)貨供應(yīng),賬期支持! |
詢價(jià) | ||
TI(德州儀器) |
10000 |
原裝正品現(xiàn)貨庫存價(jià)優(yōu) |
詢價(jià) | ||||
TI(德州儀器) |
23+ |
NA |
20094 |
正納10年以上分銷經(jīng)驗(yàn)原裝進(jìn)口正品做服務(wù)做口碑有支持 |
詢價(jià) | ||
TI |
22+ |
NA |
30000 |
原裝正品支持實(shí)單 |
詢價(jià) | ||
TI |
24+ |
NA |
4726 |
專注TI原裝正品代理分銷,認(rèn)準(zhǔn)水星電子 |
詢價(jià) | ||
TI/德州儀器 |
21+ |
QFN |
3540 |
只做原裝正品,不止網(wǎng)上數(shù)量,歡迎電話微信查詢! |
詢價(jià) | ||
TI |
23+ |
WSON-8 |
2500 |
市場最低 原裝現(xiàn)貨 假一罰百 可開原型號 |
詢價(jià) | ||
TI(德州儀器) |
22+ |
N/A |
6000 |
原廠原裝現(xiàn)貨訂貨價(jià)格優(yōu)勢終端BOM表可配單提供樣品 |
詢價(jià) | ||
6000 |
詢價(jià) |
