TC2117 Datasheet, PDF (2/12 Pages) Microchip Technology – 800mA 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
*Stresses above those listed under "Absolute Maximum
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.
TC2117 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: V_IN = V_R + 1.5V (Note 1), I_L = 100µA, C_L = 3.3µF, T_A = 25°C, unless otherwise specified. Boldface type
specifications apply for junction temperatures of -40°C to +125°C.
Symbol
Parameter
Min
Typ
Max Units
Test Conditions
V_IN
I_OUTMAX
V_OUT
Input Operating Voltage
Maximum Output Current
Output Voltage
∆V_OUT/∆T V_OUT Temperature Coefficient
∆V_OUT/∆V_IN Line Regulation
∆V_OUT/V_OUT Load Regulation
V_IN - V_OUT Dropout Voltage
I_DD
PSRR
Supply Current
Power Supply Rejection Ratio
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
60
190
340
600
700
890
80
55
0.35
0
30
160
480
800
1300
1000
1400
130
—
%
%/mA
mV
µA
dB
(V_R + 1V) V_IN 6V
I_L = 0.1mA to I_OUTMAX (Note 4)
V_R > 2.5V,
V_R = 1.8V,
I_L = 100 µA
I_L = 100 µA
I_L = 300 µA
I_L = 500 µA
I_L = 800 µA
I_L = 500 µA
I_L = 800 µA (Note 5)
I_L = 0
F < 120Hz
I_OUTSC
Output Short Circuit Current
—
1200
—
mA V_OUT = 0V
∆V_OUT/∆P_D Thermal Regulation
—
0.04
—
V/W (Note 6)
eN
Output Noise
—
300
—
nV/√Hz I_L = 100mA, F = 10kHz
Note 1: V_R is the regulator output voltage setting.
2: The minimum V_IN has to justify the conditions: V_IN ≥ V_R + V_DROPOUT and V_IN ≥ 2.7V for I_L = 0.1mA to I_OUTMAX.
3: T_C V_OUT = (V_OUTMAX – V_OUTMIN) x 10⁶
V_OUT x ∆T
4: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested
over a load range from 0.1mA 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 = 10msec.
7: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction
temperature, and the thermal resistance from junction-to-air (i.e., T_A, T_J, θ_JA). Exceeding the maximum allowable power
dissipation causes the device to initiate thermal shutdown. Please see Thermal Considerations section of this data
sheet for more details.
DS21665B-page 2
© 2002 Microchip Technology Inc.