TC2117_06 Datasheet, PDF (2/18 Pages) Microchip Technology – 800 mA Fixed Low Dropout Positive Regulator

TC2117
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
Input Voltage .........................................................6.5V
Output Voltage.................... (V_SS – 0.3) to (V_IN + 0.3V)
Power Dissipation................Internally Limited (Note 7)
Maximum Voltage on Any Pin .........V_IN +0.3V to -0.3V
Operating Temperature ............... -40°C < T_J < +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, V_IN = V_R + 1.5V, (Note 1), I_L = 100 µA, C_L = 3.3 µF, T_A = +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
Maximum Output Current
Output Voltage
V_OUT Temperature Coefficient
Line Regulation
Load Regulation (Note 4)
Dropout Voltage (Note 5)
Supply Current
Power Supply Rejection Ratio
V_IN
I_OUTMAX
V_OUT
ΔV_OUT/ΔT
ΔV_OUT/ΔV_IN
ΔV_OUT/V_OUT
V_IN–V_OUT
I_DD
PSRR
2.7
—
6.0
V Note 2
800
—
—
mA
V_R – 2.5% V_R ± 0.5% V_R + 2.5%
V
V_R ≥ 2.5V
V_R – 2% V_R ± 0.5% V_R + 3%
V_R = 1.8V
—
40
—
ppm/°C Note 3
—
-0.01
—
—
—
—
—
—
—
—
—
0.007
0.002
20
50
150
260
450
1000
1200
80
55
0.35
0
30
160
480
800
1300
1200
1400
130
—
%
%/mA
mV
µA
db
(V_R + 1V) ≤ V_IN ≤ 6V
I_L = 0.1 mA to I_OUTMAX
V_R ≥ 2.5V, I_L = 100 µA
V_R ≥ 2.5V, I_L = 100 mA
V_R ≥ 2.5V, I_L = 300 mA
V_R ≥ 2.5V, I_L = 500 mA
V_R ≥ 2.5V, I_L = 800 mA
V_R = 1.8V, I_L = 500 mA
I_L = 800 mA
SHDN = V_IH, I_L = 0
F ≤ 1 kHz
Output Short Circuit Current
I_OUTSC
—
1200
—
mA V_OUT = 0V
Thermal Regulation
ΔV_OUT/ΔP_D
—
0.04
—
V/W Note 6
Output Noise
eN
—
300
—
nV/√Hz I_L = 100 mA, F = 10 kHZ
Note 1:
2:
3:
V_R is the regulator output voltage setting.
The minimum V_IN has to justify the conditions: V_IN ≥ V_R + V_DROPOUT and V_IN ≥ 2.7V for I_L = 0.1 mA to I_OUTMAX.
TCV_OUT
=
-⁽--^V----^O----^U---^T---^M-----^A---^X----–-----^V---^O----^U----^T---^M----^I--^N----⁾---–-----1---0---⁶-
V_OUT × ΔT
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 I_LMAX at V_IN = 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., T_A, T_J, θ_JA). Exceeding the maximum allowable power dis-
sipation causes the device to initiate thermal shutdown. Please see Section 4.2 “Thermal Considerations” for more
details.
DS21665C-page 2
© 2006 Microchip Technology Inc.