參數(shù)資料
型號(hào): SC418ULTRT
廠商: Semtech
文件頁(yè)數(shù): 3/30頁(yè)
文件大小: 691K
描述: IC REG DL BUCK/LINEAR 20MLPQ
產(chǎn)品培訓(xùn)模塊: Power Supplies 101
標(biāo)準(zhǔn)包裝: 1
系列: EcoSpeed®
拓?fù)洌?/td> 降壓(降壓)(1),線性(LDO)(1)
功能: 任何功能
輸出數(shù): 2
頻率 - 開關(guān): 1MHz
電壓/電流 - 輸出 1: 控制器
電壓/電流 - 輸出 2: 0.75 V ~ 5.25 V,200mA
帶 LED 驅(qū)動(dòng)器: 無(wú)
帶監(jiān)控器: 無(wú)
帶序列發(fā)生器: 無(wú)
電源電壓: 3 V ~ 28 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-MLPQ
供應(yīng)商設(shè)備封裝: 20-MLPQ(3x3)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: SC418ULTRTDKR
SC418
3
Absolute Maximum Ratings
(1)
LX to PGND (V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +30
LX to PGND (V) (transient  00ns) ...........-2 to +30
DH, BST to PGND (V) ........................-0.3 to +35
DH, BST to LX (V) ............................-0.3 to +6
DL to PGND (V) ..............................-0.3 to +6
VIN to PGND (V) ..............................-0.3 to +30
EN, FB, FBL, ILIM to AGND (V) .......-0.3 to +(VDDA + 0.3)
PGOOD, PSV, TON to AGND (V) .....-0.3 to +(VDDA + 0.3)
VLDO, VOUT to AGND (V) ..........-0.3 to +(VDDA + 0.3)
TON to AGND (V). . . . . . . . . . . . . . . . . . . -0.3 to +(VDDA -.5)
ENL to AGND (V) ............................. -0.3 to VIN
VDDP to PGND, VDDA to AGND (V) .......... 0.3 to +6
VDDA to VDDP (V) ...........................-0.3 to +0.3
AGND to PGND (V) .........................-0.3 to +0.3
Recommended Operating Conditions
Input Voltage (V) ............................. 3.0 to 28
VDDA to AGND, VDDP to PGND (V) ........... 3.0 to 5.5
VOUT to PGND (V) ........................... 0.5 to 5.5
Thermal Information
Storage Temperature (癈) ....................-60 to +50
Maximum Junction Temperature (癈) ............... 50
Operating Junction Temperature (癈) ........-40 to +25
Thermal resistance, junction to ambient
(2)
 (癈/W) ..... 50
Peak IR Reflow Temperature (癈) .................... 260
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not recommended.
NOTES:
() This device is ESD sensitive. Use of standard ESD handling precautions is required.
(2) Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB with thermal vias under the exposed pad per JESD5 standards.
Unless specified: V
IN
 =2V, VDDA = VDDP = 5V, T
A
 = +25癈 for Typ, -40 to +85 癈 for Min and Max, T
J
 < 25癈, Typical Application Circuit
Electrical Characteristics
Parameter
Conditions
Min  Typ  Max  Units
Input Supplies
Input Supply Voltage
3
28    V
VIN UVLO Threshold
()
Sensed at ENL pin, rising edge
2.40   2.60   2.95
V
Sensed at ENL pin, falling edge
2.235   2.40   2.565
VIN UVLO Hysteresis
Sensed at ENL pin; EN = 5V
0.2
V
VDDA UVLO Threshold
Measured at VDDA pin, rising edge
2.50   2.90   3.05
V
Measured at VDDA pin, falling edge
2.40   2.70   2.90
VDDA UVLO Hysteresis
0.2
V
VIN Supply Current
Shutdown mode; ENL , EN = 0V
8.5   20.0
Standby mode; VDDA = VDDP = ENL = 5V,
EN = 0V, ignore LDO FB resistor bias current
30
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