TC1305 Datasheet, PDF (3/18 Pages) Microchip Technology – Dual 150mA CMOS LDO With Select Mode™ Operation, Shutdown and Independent RESET Output

TC1305
TC1305 ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: V_IN = V_R + 1V, I_L = 100µA, C_L = 3.3µF, SHDN1 > V_IH, SHDN2 > V_IH, T_A = 25°C, unless otherwise noted.
Boldface type specifications apply for junction temperature of -40°C to +125°C. Applies to both V_OUT1 and V_OUT2.
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
T_SD
∆T_SD
eN
Thermal Shutdown Die
Temperature
Thermal Shutdown Hysteresis
Output Noise
SHDN Input
—
160
—
°C
—
15
—
°C
—
200
—
nV√Hz I_L = 100µA, F = 1kHz,
C_OUT1 = C_OUT2 = 4.7µF,
C_BYPASS = 0.01µF
—
29
—
µV_RMS F = 10Hz to 100kHz
V_IH
SHDN Input High Threshold
V_IL
SHDN Input Low Threshold
SELECT Input
65
—
—
%V_IN V_IN = 2.7V to 6.0V
—
—
15
%V_IN V_IN = 2.7V to 6.0V
V_SELH
SELECT Input HIgh Threshold
V_IN – 0.2
—
V_SELL
SELECT Input Low Threshold
—
RESET Output
—
V V_IN = 2.7V to 6.0V
0.2
V V_IN = 2.7V to 6.0V
V_DET
V_TH
I_VDET
V_DET Voltage Range
Reset Threshold
Reset Circuit Supply Current
Reset Threshold Tempco
1.0
—
6.0
V T_A = 0°C to +70°C
1.2
—
6.0
T_A = -40°C to +125°C
2.59
2.63
2.66
V T_A = +25°C
2.55
—
2.70
T_A = -40°C to +125°C
—
20
40
µA RESET = Open
—
30
—
ppm/°C
V_DET to Reset Delay
Reset Active Time-out Period
—
100
—
µsec V_DET = V_TH to (V_TH – 100mV)
140
300
560
msec
V_OL
V_OH
Note 1:
2:
3:
4:
5:
6:
7:
RESET Output Voltage Low
—
—
0.3
V
V_DET = V_THMIN, I_SINK = 1.2mA
—
—
0.4
V_DET = V_THMIN, I_SINK = 3.2mA
—
—
0.3
V_DET > 1.0V, I_SINK = 50µA
RESET Output Voltage High
0.8 V_DET
—
V_DET – 1.5
—
—
V
V_DET > V_THMAX, I_SOURCE = 500µA
V_DET > V_THMAX, I_SOURCE = 800µA
The minimum V_IN has to meet two conditions: V_IN ≥ 2.7 and V_IN ≥ V_R + V_DROPOUT.
V_R is the regulator output voltage setting. For example: V_R = 2.5V, 2.8V, 3.0V.
T_C V_OUT = (V_OUTMAX – V_OUTMIN) x 10⁶
V_OUT x ∆T
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.
Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at a 1V
differential.
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 msec.
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 Section 5.0 Thermal Considerations section of this data sheet for more details.
© 2002 Microchip Technology Inc.
DS21526A-page 3