参数资料
型号: TPS54478RTET
厂商: Texas Instruments
文件页数: 2/38页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 4A 16WQFN
标准包装: 1
系列: SWIFT™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.6 V ~ 4.5 V
输入电压: 2.95 V ~ 6 V
PWM 型: 电流模式
频率 - 开关: 500kHz
电流 - 输出: 4A
同步整流器:
工作温度: -40°C ~ 150°C
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
包装: 标准包装
供应商设备封装: 16-WQFN 裸露焊盘(3x3)
其它名称: 296-29064-6

SLVSAS2 – JUNE 2011
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
O RDERING        INFORMATION (1)
T J
– 40 ° C to 150 ° C
PACKAGE
3 × 3 mm QFN
PART NUMBER
TPS54478RTE
(1)
For the most current package and ordering information, see the Package Option Addendum at the end
of this document, or see the TI website at www.ti.com
ABSOLUTE MAXIMUM RATINGS (1)
UNIT
VIN
EN
BOOT
– 0.3 to 7
– 0.3 to 7
PH + 7
Input voltage
Output voltage
Source current
Sink current
VSENSE
COMP
PWRGD
SS/TR
RT/CLK
BOOT-PH
PH
PH 10 ns Transient
EN
RT/CLK
COMP
PWRGD
– 0.3 to 3
– 0.3 to 3
– 0.3 to 7
– 0.3 to 3
– 0.3 to 3.3
7
– 0.6 to 7
– 2 to 10
100
100
100
10
V
V
μ A
μ A
mA
SS/TR
Electrostatic discharge (Human Body Model) QSS 009-105 (JESD22-A114A) (2)
Electrostatic discharge (Charged Devic Model) QSS 009-147 (JESD22-C101B.01)
100
2
500
μ A
kV
V
Temperature
T j
T stg
– 40 to 150
– 65 to 150
° C
° C
(1)
(2)
2
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under ELECTRICAL
SPECIFICATIONS is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
The human body model is a 100-pF capacitor discharged through a 1.5-k ? resistor into each pin. The machine model is a 200-pF
capacitor discharged directly into each pin.
Copyright ? 2011, Texas Instruments Incorporated
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