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參數(shù)資料
| 型號： | LTC3569EFE#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.5 A SWITCHING REGULATOR, 3000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 4.40 MM, LEAD FREE, PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 21/26頁 |
| 文件大?。?/td> | 468K |
| 代理商： | LTC3569EFE#TRPBF |
LTC3569
4
3569fd
ELECTRICAL CHARACTERISTICS
ISVIN vs Temperature
Efficiency vs Load Current
OUT2 = 1.8V
Efficiency vs Load Current
OUT3 = 1.2V
TYPICAL PERFORMANCE CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Current into a pin is positive and current out of a pin is negative.
All voltages referenced to SGND.
Note 3: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 4: Specification is guaranteed by design and not 100% tested in
production.
Note 5: Switch on-resistance verified by correlation to wafer level
measurements.
Note 6: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature exceeds 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 7: The LTC3569 is tested under pulsed load conditions such that
TJ ≈ TA. The LTC3569E is guaranteed to meet specified performance from
0°C to 85°C. Specifications over the –40°C to 125°C operating junction
temperature range are assured by design characterization and correlation
with statistical process controls. The LTC3569I is guaranteed to meet
specified performance over the full –40°C to 125°C operating junction
temperature range.
TEMPERATURE (°C)
–50
I SVIN
(A)
300
250
150
50
200
100
0
50
3569 G01
150
100
0
BUCK1 ONLY PULSE-SKIPPING VIN = 3.5V
BUCK1 ONLY Burst Mode OPERATION
VIN = 3.5V
SLOPE
185nA/°C
SLOPE
132nA/°C
NO LOAD
ILOAD (mA)
EFFICIENCY
(%)
3569 G02
100
90
80
70
60
50
40
30
20
10
0
0.01
0.1
100
1000
10
1
VIN = 3V
VIN = 5V
Burst Mode OPERATION
PULSE-SKIPPING
ILOAD (mA)
EFFICIENCY
(%)
3569 G03
100
90
80
70
60
50
40
30
20
10
0
0.01
0.1
100
1000
10
1
VIN = 3V
VIN = 5V
Burst Mode OPERATION
PULSE-SKIPPING
TA = 25°C, unless otherwise noted.
The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V unless otherwise noted (Notes 2, 7).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RPGOOD
PGOOD Pull-Down On-Resistance
VFBX < 0.4V
380
525
Ω
UVLO
Undervoltage Lockout
l
2.5
V
fOSC
Fixed Oscillator Frequency
VRT = SVIN
l
1.9
2.25
2.8
MHz
fCLK(MAX)
Maximum Programmable Oscillator Frequency RT = 100k
l
3.0
MHz
fCLK(MIN)
Minimum Programmable Oscillator Frequency RT = 453k
l
1.0
MHz
fSYNC
Sync Frequency
VRT = SVIN
3
MHz
RT = 453k
1.2
MHz
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| LTC3569EUD#TRPBF | 功能描述:IC REG BUCK SYNC ADJ TRPL 20QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
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| LTC3569EUD-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Triple Buck Regulator With 1.2A and Two 600mA Outputs and Individual Programmable References |
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