參數(shù)資料
型號(hào)： LM3370TLX-3206
廠商： National Semiconductor Corporation
元件分類(lèi)： DC/DC變換器
英文描述： Dual Synchronous Step-Down DC-DC Converter with Dynamic Voltage Scaling Function
中文描述： 雙同步降壓型DC - DC轉(zhuǎn)換器的動(dòng)態(tài)電壓調(diào)節(jié)功能
文件頁(yè)數(shù)： 6/26頁(yè)
文件大?。?/td> 5302K
代理商： LM3370TLX-3206
Absolute Maximum Ratings
(Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN1
, V
IN2
VDD to PGND &
SGND
PGND to SGND
SDA, SCL, EN, EN2, nPOR1,
nPOR2, SW1, SW2, FB1 & FB2 (GND - 0.2) to (V
IN
+ 0.2V)
Maximum Continuous Power
Dissipation (P
D_MAX
) (Note 3)
Junction Temperature (T
J-MAX
)
Storage Temperature Range
Maximum Lead Temperature
(Soldering)
0.2V to 6V
-0.2V to +0.2V
Internally Limited
125°C
65°C to +150°C
(Note 4)
ESD Ratings (Note 5)
All Pins
2 kV HBM
200V MM
Operating Ratings
(Notes 1, 2)
Input Voltage Range ((Note 10))
Recommended Load Current Per
Channel
Junction Temperature (T
J
) Range
Ambient Temperature (T
A
) Range (Note
6)
2.7V to 5.5V
0 mA to 600 mA
30°C to +125°C
30°C to +85°C
Thermal Properties
(Note 7)
Junction-to-Ambient Thermal Resistance
θ
JA
(LLP-16)
θ
JA
(20-Bump micro SMD)
26°C/W
50°C/W
Electrical Characteristics
appearing in boldface type apply over the entire junction temperature range (T
A
= T
J
= 30°C to +85°C). Unless otherwise noted,
V
IN1
= V
IN2
= 3.6V.
Symbol
Parameter
Conditions
V
FB
Feedback Voltage
(Note 11)
V
OUT
Line Regulation
I
O
= 10 mA, V
OUT
= 1.8V
Load Regulation
100 mA
≤
I
O
≤
600 mA
V
IN
= 3.6V, V
OUT
= 1.8V
I
Q
PFM
Quiescent Current “On”
PFM Mode, Both Bucks ON
I
Q
SD
Quiescent Current “Off”
EN1 = EN2 = 0V
I
LIM
Peak Switching Current Limit
V
IN
= 3.6V
R
DS_ON
(LLP)
NFET
V
IN
= 3.6V, I
SW
= 200 mA
R
DS_ON
(micro SMD)
NFET
V
IN
= 3.6V, I
SW
= 200 mA
F
OSC
Internal Oscillator Frequency
I
EN
Enable (EN) Input Current
V
IL
Enable Logic Low
V
IH
Enable Logic High
POWER ON RESET THRESHOLD/FUNCTION (POR)
nPOR1 &
nPOR2
Delay Time
nPOR2 = Power ON Reset
for Buck 2
mS & 200 mS
POR
Threshold
V
OUT
Falling, 85% (default), Can be
pre-trimmed to 70% or 94%
(Notes 2, 8, 10)Typical limits appearing in normal type apply for T
J
= 25°C. Limits
Min
-3.5
Typ
Max
+3.5
Units
%
2.7V
≤
V
IN
≤
5.5V
0.031
%/V
0.0013
%/mA
34
μA
0.2
3
μA
850
1200
1400
mA
PFET
V
IN
= 3.6V, I
SW
= 200 mA
390
500
m
240
350
PFET
V
IN
= 3.6V, I
SW
= 200 mA
350
400
m
170
210
2.4
1
0.4
1.5
2.0
MHz
0.01
μA
V
1.0
V
nPOR1 = Power ON Reset
for Buck 1
50 mS (default)
50
mS
Can be pre-trimmd to 50 uS, 100
Percentage of Target V
OUT
V
OUT
Rising
94
%
85
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM3370TLX-3206/NOPB 功能描述:DC/DC 開(kāi)關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
LM3370TLX-3607 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Dual Synchronous Step-Down DC-DC Converter with Dynamic Voltage Scaling Function
LM3370TLX-3607/NOPB 功能描述:DC/DC 開(kāi)關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
LM3370TLX-3806 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Dual Synchronous Step-Down DC-DC Converter with Dynamic Voltage Scaling Function
LM3370TLX-3806/NOPB 功能描述:DC/DC 開(kāi)關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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