音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

LTC1708EG-PG Datasheet

  • LTC1708EG-PG

  • Dual Adjustable 5-Bit VID High Efficiency, 2-Phase Current M...

  • 361.51KB

  • 32頁

  • LINER

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

Final Electrical Specifications
LTC1708-PG
Dual Adjustable 5-Bit VID
High Efficiency, 2-Phase Current Mode
Synchronous Buck Regulator Controller
February 2000
FEATURES
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Out-of-Phase Controllers Reduce Input Capacitance
and Power Supply Induced Noise
OPTI-LOOP
TM
Compensation Minimizes C
OUT
Power Good Output Monitors Both Outputs
5-Bit Mobile VID Control, V
OUT
: 0.9V to 2.0V
Dual N-Channel MOSFET Synchronous Drive
鹵1%
Output Voltage Accuracy
DC Programmed Fixed Frequency 150kHz to 300kHz
Wide V
IN
Range: 3.5V to 36V Operation
Very Low Dropout Operation: 99% Duty Cycle
Adjustable Soft-Start Current Ramping
Foldback Output Current Limiting
Latched Short-Circuit Shutdown with Defeat Option
Output Overvoltage Protection
Remote Output Voltage Sense
Low Shutdown Current: 20碌A(chǔ)
5V and 3.3V Standby Regulators
Selectable Constant Frequency, Burst Mode
TM
and
Continuous Operation
The LTC
廬
1708 is a dual adjustable 5-bit VID program-
mable step-down switching regulator controller that drives
all N-Channel power MOSFET stages. A constant fre-
quency current mode architecture allows adjustment of
the frequency up to 300kHz. Power loss and noise due to
the ESR of the input capacitance are minimized by oper-
ating the two main controller output stages out of phase.
OPTI-LOOP compensation allows the transient response
to be optimized over a wide range of output capacitance
and ESR values. The precision 0.8V reference is compat-
ible with future microprocessor generations, and a wide
3.5V to 30V (36V maximum) input supply range that
encompasses all battery chemistries. A power good out-
put indicates when the output voltages are within 7.5% of
their programmed value.
A RUN/SS pin for each controller provides both soft-start
and an optional timed, short-circuit shutdown. Other
protection features include: internal foldback current lim-
iting and an output overvoltage crowbar. The force con-
tinuous control pin (FCB) can be used to inhibit Burst
Mode operation or to regulate a third, flyback output.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode and OPTI-LOOP are trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
Notebook and Palmtop Computers, PDAs
Portable Instruments
TYPICAL APPLICATIO
M1
L1
1碌H
+
4.7碌F
D3
V
IN
TG1
C
B1
0.47碌F
BOOST1
SW1
D1
M2
5 VID BITS
LTC1708-PG
BG1
VID0 TO VID4
SENSE1
R
SENSE1
0.003鈩?/div>
1000pF
SENSE1
鈥?/div>
ATTNIN
C
OUT1a
+
10碌F
6.3V
CERAMIC
C
OUT1
270碌F
2V
SP
脳4
C
C1
1500pF
R
C1
22k
I
TH1
C
SS1
0.1碌F
+
VIDV
CC
INTV
CC
TG2
BOOST2
SW2
BG2
PGND
SENSE2
+
PGOOD
SENSE2
鈥?/div>
V
OSENSE2
I
TH2
C
SS2
0.1碌F
D4
1碌F
CERAMIC
M3a
C
B2
0.1碌F
1000pF
V
OUT1
0.925V TO
2.00V
14.1A
RUN/SS1 SGND RUN/SS2
C
C2
220pF
R
C2
15k
Figure 1. High Efficiency VID Controlled, 2-Output Step-Down Converter
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
C
IN
10碌F
50V
CERAMIC
脳4
L2
2.2碌H
M3b
D2
R
SENSE2
0.01鈩?/div>
R3
20k
1%
R4
63.4k
1%
C
OUT
180碌F
4V
SP
U
U
V
IN
4.75V TO 28V
V
OUT2
1.5V
4A
+
M1: IRF7811
M2: 1RF7809
M3a, M3b: FDS6982
L1: VISHAY 5050CE
ATTNOUT CONNECTED TO EAIN1
1628 F01
1

LTC1708EG-PG 產(chǎn)品屬性

  • LTC1708-PG

  • 37

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電流模式

  • 2

  • 350kHz

  • 99.4%

  • 3.5 V ~ 30 V

  • 是

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • -40°C ~ 85°C

  • 36-SSOP（0.209"，5.30mm 寬）

  • 管件

LTC1708EG-PG相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Dual Micropower Comparator
    LINER
  • 英文版
    DUAL MICROPOWER COMPARATOR
    LINER [Lin...
  • 英文版
    Dual Micropower Comparator
    LINER [Lin...
  • 英文版
    BANG-BANG Controller
    LINER
  • 英文版
    BANG-BANG Controller
    LINER [Lin...
  • 英文版
    Window Comparator
    LINER
  • 英文版
    Window Comparator
    LINER [Lin...
  • 英文版
    Window Comparator
    LINER [Lin...
  • 英文版
    2-Channel Differential Input 16-Bit No Latency DS ADC
    LINER
  • 英文版
    2-Channel Differential Input 24-Bit No Latency DS ADC
    LINER [Lin...
  • 英文版
    2-Channel Differential Input 16-Bit No Latency DS ADC
    LINER [Lin...
  • 英文版
    Dual Precision Intrumentation Switched-Capacitor Building Bl...
    LINER [Lin...
  • 英文版
    Switched Capacitor Voltage Converter
    LINER
  • 英文版
    Switched Capacitor Voltage Converter
    LINER [Lin...
  • 英文版
    Programmable Micropower Hex Translator/ Receiver/Driver
    LINER
  • 英文版
    Programmable Micropower Hex Translator/ Receiver/Driver
    LINER [Lin...
  • 英文版
    “Inductorless” 5V to + 5V Converter
    LINER
  • 英文版
    “Inductorless” 5V to + 5V Converter
    LINER [Lin...
  • 英文版
    Dual Micropower Chopper Stabilized Operational Amplifier wit...
    LINER
  • 英文版
    Dual Micropower Zero-Drift Operational Amplifier with Intern...
    LINER [Lin...

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！