công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

LM2612ABPX bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện LM2612ABPX
Giải thích chi tiết về linh kiện  400mA Sub-miniature, Programmable, Step-Down DC-DC Converter for Ultra Low-Voltage Circuits
Download  19 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2612ABPX bảng dữ liệu(HTML) 4 Page - National Semiconductor (TI)

  LM2612ABPX Datasheet HTML 1Page - National Semiconductor (TI) LM2612ABPX Datasheet HTML 2Page - National Semiconductor (TI) LM2612ABPX Datasheet HTML 3Page - National Semiconductor (TI) LM2612ABPX Datasheet HTML 4Page - National Semiconductor (TI) LM2612ABPX Datasheet HTML 5Page - National Semiconductor (TI) LM2612ABPX Datasheet HTML 6Page - National Semiconductor (TI) LM2612ABPX Datasheet HTML 7Page - National Semiconductor (TI) LM2612ABPX Datasheet HTML 8Page - National Semiconductor (TI) LM2612ABPX Datasheet HTML 9Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 19 page
background image
Electrical Characteristics (Continued)
Specifications with standard typeface are for T
A =TJ = 25˚C, and those in bold face type apply over the full Operating Tem-
perature Range (T
A =TJ = −25˚C to +85˚C). Unless otherwise specified, PVIN = VDD = EN = SYNC = 3.6V, VID0 = VID1 =
0V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
I
VID
VID1, VID0 Pull Down
Current
VID1, VID0 = 3.6V
1.8
µA
f
sync
SYNC/MODE Clock
Frequency Range
(Note 10)
500
1000
kHz
F
OSC
Internal Oscillator
Frequency
LM2612ABP, PWM Mode
(SYNC = VIN)
468
600
732
kHz
LM2612BBP, PWM Mode
(SYNC = VIN)
450
600
750
T
min
Minimum ON-Time of P FET
Switch in PWM Mode
200
ns
Load Transient Response in
PWM Mode
Circuit of
Figure 1
I
OUT = 20mA to 200mA Step
±25
mV
Line Transient Response in
PFM Mode
Circuit of
Figure 1
V
IN = 3.0V to 3.6V Step
t
r =tp =10 µs
±3mV
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions for which the device is intended
to be functional, but parameter specifications may not be guaranteed. For guaranteed specifications and associated test conditions, see the Min and Max limits and
Conditions in the Electrical Characteristics table. Electrical Characteristics table limits are guaranteed by production testing, design or correlation using standard
Statistical Quality Control methods. Typical (Typ) specifications are mean or average values from characterization at 25C and are not guaranteed.
Note 2: In PWM mode, Thermal shutdown will occur if the junction temperature exceeds the 150˚C maximum junction temperature of the device.
Note 3: Thermal resistance specified with 2 layer PCB(0.5/0.5 oz. cu).
Note 4: Thermal resistance specified with 3 layer PCB (2/1/1 oz. cu) and 12 vias 0.33mm diameter (see Application Note AN-1187).
Note 5: The LM2612 is designed for cell phone applications where turn-on after power-up is controlled by the system processor and internal UVLO (Under Voltage
LockOut) circuitry is unecessary. The LM2612 has no UVLO circuitry and should be kept in shutdown by holding the EN pin low until the input voltage exceeds 2.8V.
Although the LM2612 exhibited safe behavior during pre-production evaluation while enabled at low input voltages, this is not guaranteed.
Note 6: The feedback voltage is trimmed at the 1.5V output setting. The other output voltages result from the pin selection of the internal DAC’s divider ratios. The
precision for the feedback voltages is ±2%, except for the 1.05V setting, which is 5%. Contact the Portable Power Applications group at National Semiconductor,
if trimming at other voltages is desired.
Note 7: : The hysteresis voltage is the minimum voltage swing on FB that causes the internal feedback and control circuitry to turn the internal PFET switch on and
then off, during PFM mode.
Note 8: Current limit is built-in, fixed, and not adjustable. If the current limit is reached while the output is pulled below about 0.7V, the internal PFET switch turns
off for 2.5 µs to allow the inductor current to diminish.
Note 9: EN is a CMOS Schmitt trigger digital input with logic thresholds that scale with the supply voltage at the VDD pin. The nominal logic thresholds are
approximately 0.71VDD and 0.55VDD for the high and low thresholds respectively.
Note 10: SYNC driven with an external clock switching between VIN and GND. When an external clock is present at SYNC, the IC is forced to PWM mode at the
external clock frequency. The LM2612 synchronizes to the rising edge of the external clock.
www.national.com
4


Số phần tương tự - LM2612ABPX

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
National Semiconductor ...
LM2612ABL NSC-LM2612ABL Datasheet
2Mb / 19P
   400mA Sub-miniature, Programmable, Step-Down DC-DC Converter for Ultra Low-Voltage Circuits
LM2612ABLX NSC-LM2612ABLX Datasheet
2Mb / 19P
   400mA Sub-miniature, Programmable, Step-Down DC-DC Converter for Ultra Low-Voltage Circuits
More results

Mô tả tương tự - LM2612ABPX

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
National Semiconductor ...
LM2612BL NSC-LM2612BL Datasheet
2Mb / 19P
   400mA Sub-miniature, Programmable, Step-Down DC-DC Converter for Ultra Low-Voltage Circuits
LM3670 NSC-LM3670 Datasheet
997Kb / 17P
   Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
LM3670 NSC-LM3670_06 Datasheet
978Kb / 17P
   Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
logo
Texas Instruments
LM3670 TI1-LM3670_14 Datasheet
1Mb / 24P
[Old version datasheet]   Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
LM3670 TI-LM3670_15 Datasheet
1Mb / 25P
[Old version datasheet]   LM3670 Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
LM3670MF-18 TI-LM3670MF-18 Datasheet
1Mb / 25P
[Old version datasheet]   LM3670 Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
LM3670MF-18 TI1-LM3670MF-18 Datasheet
1Mb / 25P
[Old version datasheet]   LM3670 Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
LM3677 TI1-LM3677 Datasheet
11Mb / 30P
[Old version datasheet]   3MHz, 600mA Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
LM3677 TI-LM3677_15 Datasheet
11Mb / 28P
[Old version datasheet]   3MHz, 600mA Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
logo
National Semiconductor ...
LM3677_0810 NSC-LM3677_0810 Datasheet
7Mb / 24P
   3MHz, 600mA Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com