Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

LM3204 Fiches technique(PDF) 4 Page - Texas Instruments

No de pièce LM3204
Description  LM3204 Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

LM3204 Fiches technique(HTML) 4 Page - Texas Instruments

  LM3204_15 Datasheet HTML 1Page - Texas Instruments LM3204_15 Datasheet HTML 2Page - Texas Instruments LM3204_15 Datasheet HTML 3Page - Texas Instruments LM3204_15 Datasheet HTML 4Page - Texas Instruments LM3204_15 Datasheet HTML 5Page - Texas Instruments LM3204_15 Datasheet HTML 6Page - Texas Instruments LM3204_15 Datasheet HTML 7Page - Texas Instruments LM3204_15 Datasheet HTML 8Page - Texas Instruments LM3204_15 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 24 page
background image
LM3204
SNVS351C – JUNE 2005 – REVISED APRIL 2013
www.ti.com
ELECTRICAL CHARACTERISTICS
(1) (2)
Limits in standard typeface are for TA = TJ = 25°C. Limits in boldface type apply over the full operating ambient temperature
range (
−30°C ≤ TA = TJ ≤ +85°C). Unless otherwise noted, specifications apply to the LM3204 with: PVIN = VDD = EN = 3.6V,
BYP = 0V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIN
Input Voltage Range (3)
PVIN = VDD = VIN
2.7
5.5
V
VFB, MIN
Feedback Voltage at
VCON = 0.267V, VIN = 3.6V
0.75
0.800
0.85
V
Minimum Setting
VFB, MAX
Feedback Voltage at
VCON = 1.20V, VIN = 4.2V
3.528
3.600
3.672
V
Maximum Setting
OVP
Over-Voltage Protection
(4)
330
400
mV
Threshold
VBYPASS−
Auto Bypass Detection
(5)
160
250
320
mV
Negative Threshold
VBYPASS+
Auto Bypass Detection
(5)
350
450
540
mV
Positive Threshold
ISHDN
Shutdown Supply
EN = SW = BYPOUT = VCON = FB = 0V
0.1
3
µA
Current (6)
IQ_PWM
DC Bias Current into
VCON = 0.267V, FB = 2V, BYPOUT = 0V, No-Load
720
800
µA
VDD
IQ_BYP
BYP = 3.6V, VCON = 0.5V, No-Load
720
800
µA
RDSON (P)
Pin-Pin Resistance for
ISW = 500mA
320
450
m
PFET
RDSON (N)
Pin-Pin Resistance for
ISW = - 200mA
310
450
m
N-FET
RDSON
Pin-Pin Resistance for
IBYPOUT = 500mA
85
120
m
(BYP)
Bypass FET
ILIM-PFET
Switch Current Limit
(7)
700
820
940
mA
ILIM-BYP
Bypass FET Current
(8)
800
1000
1200
mA
Limit
FOSC
Internal Oscillator
1.7
2
2.2
MHz
Frequency
VIH
Logic High Input
1.20
V
Threshold for EN, BYP
VIL
Logic Low Input
0.4
V
Threshold for EN, BYP
IPIN
Pin Pull Down Current
EN, BYP = 3.6V
5
10
µA
for EN, BYP
Gain
VCON to VOUT Gain
3
V/V
ICON
VCON Input Leakage
VCON = 1.2V
10
nA
Current
(1)
All voltages are with respect to the potential at the GND pins.
(2)
Min and Max limits are specified by design, test, or statistical analysis. Typical numbers are not ensured, but do represent the most
likely norm.
(3)
The LM3204 is designed for mobile phone applications where turn-on after power-up is controlled by the system controller and where
requirements for a small package size overrule increased die size for internal Under Voltage Lock-Out (UVLO) circuitry. Thus, it should
be kept in shutdown by holding the EN pin low until the input voltage exceeds 2.7V.
(4)
Over-Voltage protection (OVP) threshold is the voltage above the nominal VOUT where the OVP comparator turns off the PFET switch
while in PWM mode.
(5)
VIN is compared to the programmed output voltage (VOUT). When VIN–VOUT falls below VBYPASS− for longer than TBYP the Bypass FET
turns on and the switching FETs turn off. This is called the Bypass mode. The device comes out of Bypass mode when VIN–VOUT
exceeds VBYPASS
+ for longer than T
BYP, and PWM mode returns. The hysteresis for the bypass detection threshold VBYPASS
+
VBYPASS− will always be positive and will be approximately 200mV (typ.).
(6)
Shutdown current includes leakage current of PFET and Bypass FET.
(7)
Electrical Characteristics table reflects open loop data (FB=0V and current drawn from SW pin ramped up until cycle by cycle current
limit is activated). Refer to Typical Performance Characteristics (Open/Closed Loop Current Limit vs Temperature (PWM Mode) curve)
for closed loop data and its variation with regards to supply voltage and temperature. Closed loop current limit is the peak inductor
current measured in the application circuit by increasing output current until output voltage drops by 10%.
(8)
Bypass FET current limit is defined as the load current at which the FB voltage is 1V lower than VIN.
4
Submit Documentation Feedback
Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LM3204


Numéro de pièce similaire - LM3204_15

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
LM3204 TI1-LM3204_16 Datasheet
950Kb / 24P
[Old version datasheet]   Miniature, Adjustable, Step-Down DC-DC Converter
More results

Description similaire - LM3204_15

FabricantNo de pièceFiches techniqueDescription
logo
National Semiconductor ...
LM3200 NSC-LM3200_05 Datasheet
882Kb / 15P
   Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
logo
Texas Instruments
LM3204 TI1-LM3204 Datasheet
959Kb / 25P
[Old version datasheet]   Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
logo
National Semiconductor ...
LM3200 NSC-LM3200 Datasheet
885Kb / 15P
   Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
LM3204 NSC-LM3204 Datasheet
878Kb / 16P
   Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
logo
Texas Instruments
LM3200 TI-LM3200_15 Datasheet
937Kb / 24P
[Old version datasheet]   LM3200 Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
logo
National Semiconductor ...
LM2706 NSC-LM2706 Datasheet
451Kb / 15P
   Miniature, Variable, Step-Down DC-DC Converter with Bypass for RF Power Amplifiers
logo
Texas Instruments
LM3242 TI1-LM3242_14 Datasheet
4Mb / 28P
[Old version datasheet]   6MHz, 750mA Miniature, Adjustable, Step-Down DC-DC Converter with Auto Bypass for RF Power Amplifiers
REVISED MARCH 2013
logo
National Semiconductor ...
LM3202 NSC-LM3202 Datasheet
1Mb / 15P
   650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers
LM3205 NSC-LM3205_09 Datasheet
1Mb / 18P
   650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers
LM3205 NSC-LM3205 Datasheet
1Mb / 18P
   650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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