收藏本站
参数资料
型号： LM2633MTDX/NOPB
厂商： NATIONAL SEMICONDUCTOR CORP
元件分类： 稳压器
英文描述： SWITCHING CONTROLLER, 275 kHz SWITCHING FREQ-MAX, PDSO48
封装： TSSOP-48
文件页数： 39/40页
文件大小： 1350K
代理商： LM2633MTDX/NOPB
Absolute Maximum Ratings (Note 11)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Voltages from the indicated pins to GND/PGND:
VIN, KS1, KS2, SW1, SW2
0.3V to 31V
ILIM1, ILIM2
0.3V to 31V
VID0-VID4
0.3V to 5V
VLIN, VDD1, VDD2, PGOOD
0.3V to 6V
FB1, FB2, SENSE2, G3, FB3, OUT3
0.3V to 6V
CBOOT1
0.3V to SW1+ 7V
CBOOT2
0.3V to SW2+ 7V
ON/SS1, ON/SS2
0.3V to 5V
FPWM
0.3V to 7V
Power Dissipation (T
A = 25C),
(Note 12)
1.56W
Junction Temperature
+150C
ESD Rating (Note 14)
2kV
Ambient Storage Temperature
Range
65C to +150C
Soldering Dwell Time, Temperature (Note 13)
Wave
Infrared
Vapor Phase
4 sec, 260C
10sec, 240C
75sec, 219C
Operating Ratings(Note 11)
VIN (VIN and VLIN5 tied
together)
4.5V to 5.5V
VIN (VIN and VLIN5 separate)
5.0V to 30V
Junction Temperature 1
0C to +125C
Junction Temperature 2
40C to +125C
VDD1, VDD2
4.5V to 5.5V
Electrical Characteristics
V
CC = +15V unless otherwise indicated under the Conditions column. Typicals and limits appearing in plain type apply for TA
=T
J = +25C. Limits appearing in boldface type apply over 0C to +125C.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
SYSTEM
V
out1_load
Channel 1 Load
Regulation (Note 17)
V
COMP1 moves from 0.5V to 1.5V,
VID4:0=01101
0mV
V
out2_load
Channel 2 Load
Regulation (Note 17)
V
COMP2 moves from 0.5V to 1.5V
1.5
mV
V
fb
Line Regulation (for the
two switching regulators)
5.0V
≤ VIN ≤ 30V, VID4:0=01101
2mV
I
vin
Input Supply Current
with the Switching
Channels ON
V
FB = 0.9V, no VLIN5 DC Current
(Note 18)
1.5
2.4
mA
I
vin_sd
Input Supply Current
with the IC Shut Down
V
ON/SS1 =VON/SS2 =0V
(Note 19)
10
18
A
V
vlin5
VLIN5 Output Voltage
I
VLIN5 = 0 to 25mA, 5.5V < VIN <
30V
4.7
5.0
5.3
V
I
ilim_pos
ILIM1 and ILIM2 Pins
Sink Current
8
10
12
A
V
ilim_neg
Negative Current Limit
(SWx vs PGNDx
voltage)
45
mV
I
ss_sc
Soft Start Charge
Current
0.5
2.25
5
A
I
ss_sk
Soft Start Sink Current
In UVLO or thermal shutdown
2
A
V
ss_on
Soft Start ON Threshold
1.2
V
ssto
Soft Start Timeout
Threshold
(Note 20)
3.5
V
uvd
UV_DELAY Threshold
VLIN5 = 5V (Note 21)
2.1
V
I
delay
UV_DELAY Source
Current
1.0
5
9.0
A
I
vid
VID4:0 Internal Pull Up
Current
613
A
LM2633
www.national.com
8
相关PDF资料
PDF描述
LM2635MX/NOPB SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO20
LM26480QSQX-CF/NOPB 2.4 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, QCC24
LM26480QSQ-CF/NOPB 2.4 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, QCC24
LM26480SQ-BF/NOPB 2.4 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, QCC24
LM26480SQX-BF/NOPB 2.4 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, QCC24
相关代理商/技术参数
参数描述
LM2635 制造商:NSC 制造商全称:National Semiconductor 功能描述:5-Bit Programmable Synchronous Buck Regulator Controller
LM2635A WAF 制造商:Texas Instruments 功能描述:
LM2635M 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
LM2635M/NOPB 功能描述:IC REG SYNCH BUCK 5-BIT 20-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件
LM2635MX 功能描述:IC REG SYNCH BUCK 5-BIT 20-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*