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參數資料
| 型號： | LTC3810HUH-5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING CONTROLLER, PQCC32 |
| 封裝： | 5 X 5 MM, PLASTIC, MO-220WHHD, QFN-32 |
| 文件頁數： | 1/38頁 |
| 文件大小： | 526K |
| 代理商： | LTC3810HUH-5 |
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LTC3810-5
1
38105fd
60V Current Mode
Synchronous Switching
Regulator Controller
The LTC3810-5 is a synchronous step-down switching
regulator controller that can directly step-down voltages
from up to 60V, making it ideal for telecom and automo-
tive applications. The LTC3810-5 uses a constant on-time
valley current control architecture to deliver very low duty
cycles with accurate cycle-by-cycle current limit, without
requiring a sense resistor.
A precise internal reference provides 0.5% DC accuracy. A
high bandwidth (25MHz) error amplifier provides very fast
line and load transient response. Large 1Ω gate drivers
allow the LTC3810-5 to drive multiple MOSFETs for higher
current applications. The operating frequency is selected
by an external resistor and is compensated for variations
in VIN and can also be synchronized to an external clock
for switching-noise sensitive applications. A shutdown
pin allows the LTC3810-5 to be turned off, reducing the
supply current to 240A.
Integrated bias control generates gate drive power from
the input supply during start-up or when an output short-
circuit occurs, with the addition of a small external SOT23
MOSFET. When in regulation, power is derived from the
output for higher efficiency.
n
48V Telecom and Base Station Power Supplies
n
Networking Equipment, Servers
n
Automotive and Industrial Control Systems
n
High Voltage Operation: Up to 60V
n
Large 1Ω Gate Drivers
n
No Current Sense Resistor Required
n
Dual N-Channel MOSFET Synchronous Drive
n
Extremely Fast Transient Response
n
±0.5% 0.8V Voltage Reference
n
Programmable Output Voltage Tracking/Soft-Start
n
Generates 5.5V Driver Supply from Input Supply
n
Synchronizable to External Clock
n
Selectable Pulse Skip Mode Operation
n
Power Good Output Voltage Monitor
n
Adjustable On-Time/Frequency: tON(MIN) < 100ns
n
Adjustable Cycle-by-Cycle Current Limit
n
Programmable Undervoltage Lockout
n
Output Overvoltage Protection
n
5mm
× 5mm QFN Package
High Efficiency High Voltage Step-Down Converter
Efficiency vs Load Current
Typical applicaTion
FeaTures
applicaTions
DescripTion
L
, LT, LTC, LTM, Linear Technology, the Linear logo and No RSENSE are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective
owners. Protected by U.S. Patents including 5481178, 5847554, 6304066, 6476589, 6580258,
6677210, 6774611.
PGOOD
MODE/SYNC
VRNG
ITH
VFB
SGND
SS/TRACK
ION
1000pF
47pF
5pF
VIN
13V TO 60V
22F
VOUT
12V/6A
ZXMN10A07F
200k
LTC3810-5
EXTVCC
TG
SW
SENSE–
BG
BGRTN
SENSE+
DRVCC
INTVCC
NDRV
BOOST
38105 TA01
0.1F
274k
100k
Si7450DP
1F
MBR1100
14k
1k
270F
10H
SHDN
+
LOAD CURRENT (A)
0
85
EFFICIENCY
(%)
90
95
100
1
2
3
4
38105 TA01b
5
6
VIN = 24V
VIN = 42V
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC3810HUH-5#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數:1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC3810HUH-5#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數:1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC3810IG | 制造商:Linear Technology 功能描述: |
| LTC3810IG#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數:1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| LTC3810IG#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數:1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
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