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TC2117-1.8VDBTR Fiches technique(PDF) 2 Page - Microchip Technology

No de pièce TC2117-1.8VDBTR
Description  800 mA Fixed Low Dropout Positive Regulator
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC2117-1.8VDBTR Fiches technique(HTML) 2 Page - Microchip Technology

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TC2117
DS21665C-page 2
© 2006 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
Input Voltage .........................................................6.5V
Output Voltage.................... (VSS – 0.3) to (VIN + 0.3V)
Power Dissipation................Internally Limited (Note 7)
Maximum Voltage on Any Pin .........VIN +0.3V to -0.3V
Operating Temperature ............... -40°C < TJ < +125°C
Storage temperature ..........................-65°C to +150°C
† Notice: Stresses above those listed under "Absolute Maxi-
mum Ratings" may cause permanent damage to the device.
These are stress ratings only and functional operation of the
device at these or any other conditions above those indicated
in the operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, VIN = VR + 1.5V, (Note 1), IL = 100 µA, CL = 3.3 µF, TA = +25°C.
Boldface type specifications apply for junction temperatures of -40°C to +125°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Input Operating Voltage
VIN
2.7
6.0
V
Note 2
Maximum Output Current
IOUTMAX
800
——
mA
Output Voltage
VOUT
VR – 2.5% VR ± 0.5% VR + 2.5%
VVR ≥ 2.5V
VR – 2%
VR ± 0.5% VR + 3%
VR = 1.8V
VOUT Temperature Coefficient
ΔVOUT/ΔT
40
ppm/°C Note 3
Line Regulation
ΔVOUT/ΔVIN
—0.007
0.35
%(VR + 1V) ≤ VIN ≤ 6V
Load Regulation (Note 4)
ΔVOUT/VOUT
-0.01
0.002
0
%/mA
IL = 0.1 mA to IOUTMAX
Dropout Voltage (Note 5)
VIN–VOUT
—20
30
mV
VR ≥ 2.5V, IL = 100 µA
—50
160
VR ≥ 2.5V, IL = 100 mA
150
480
VR ≥ 2.5V, IL = 300 mA
260
800
VR ≥ 2.5V, IL = 500 mA
450
1300
VR ≥ 2.5V, IL = 800 mA
1000
1200
VR = 1.8V, IL = 500 mA
1200
1400
IL = 800 mA
Supply Current
IDD
—80
130
µA
SHDN = VIH, IL = 0
Power Supply Rejection Ratio
PSRR
55
db
F
≤ 1kHz
Output Short Circuit Current
IOUTSC
1200
mA
VOUT = 0V
Thermal Regulation
ΔVOUT/ΔPD
—0.04
V/W
Note 6
Output Noise
eN
300
nV/
√Hz IL = 100 mA, F = 10 kHZ
Note 1:
VR is the regulator output voltage setting.
2: The minimum VIN has to justify the conditions: VIN ≥ VR + VDROPOUT and VIN ≥ 2.7V for IL = 0.1 mA to IOUTMAX.
3:
4:
Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested
over a load range from 0.1 mA to the maximum specified output current. Changes in output voltage due to heating
effects are covered by the thermal regulation specification.
5:
Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal
value measured at a 1.5V differential.
6:
Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied,
excluding load or line regulation effects. Specifications are for a current pulse equal to ILMAX at VIN = 6V for T = 10 ms.
7:
The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction tem-
perature and the thermal resistance from junction-to-air (i.e., TA, TJ, θJA). Exceeding the maximum allowable power dis-
sipation causes the device to initiate thermal shutdown. Please see Section 4.2 “Thermal Considerations” for more
details.
TCVOUT
VOUTMAX VOUTMIN
() 10
6
VOUT
T
Δ
×
-------------------------------------------------------------------------
=


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