TC1307 Datasheet, PDF (2/28 Pages) Microchip Technology – Four-Channel CMOS LDO with Select Mode, Shutdown and Independent Reset

TC1307
1.0 ELECTRICAL
CHARACTERISTICS
1.1 Maximum Ratings*
V_DD..............................................................................6.5V
All inputs and outputs w.r.t. ....... ...V_IN + 0.3V to -0.3V
Output Short Circuit Current ...... ...............continuous
Storage temperature.................... .... -65°C to +150°C
Operating Junction Temperature,
T_J..................................................-40°C < T_J < +150°C
Maximum Junction Temperature, T_J..................150°C
ESD protection on all pins...................................≥ 4 kV
*Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operational listings of this specification
is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
PIN FUNCTION TABLE
Name
Function
V_DET
SHDN1
SELECT12
V_IN
V_IN
GND
SHDN3
V_IN
SHDN4
SELECT34
V_OUT4
V_OUT3
V_OUT2
V_OUT1
SHDN2
RESET
Voltage Detect Input
Shutdown for V_OUT1
Input for setting V_OUT1 and V_OUT2.
Input Voltage Connection
Input Voltage Connection
Ground connection
Shutdown for V_OUT3
Input Voltage Connection
Shutdown for V_OUT4
Input for setting V_OUT3 and V_OUT4.
LDO4 Output
LDO3 Output
LDO2 Output
LDO1 Output
Shutdown for V_OUT2
Reset Output
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, all limits are established for V_IN = V_R+1, I_L = 100 µA, C_L = 3.3 µF, SHDN > V_IH, T_A = 25°C.
Boldface type specifications apply for junction temperatures, T_J (Note 9) of -40°C to +125°C.
Parameter
Sym
Min
Typ
Max
Units
Conditions
Input Characteristics:
Input Operating Voltage
Input Quiescent Current
Input Shutdown Current
Output Characteristics:
V_IN
I_IN
I_{IN_SHDN}
2.7
—
6.0
—
220
370
—
0.1
0.5
V Note 1
µA SHDN = V_IH, I_L = 0
µA SHDN = 0V
Maximum Output Current
Output Short Circuit Current
(Average)
I_{OUT_MAX}
I_{OUT_SC}
150
—
—
360
—
mA
mA V_OUT = 0V
Voltage Regulation
LDO1/LDO2/LDO3/LDO4
V_OUT
V_R-2.5% V_R±0.5 V_R+2.5%
V Note 2
Note 1: The minimum V_IN must meet two conditions: V_IN ≥ 2.7V and V_IN ≥ (V_R + 2.5%) + V_DROPOUT.
2: V_R is the nominal regulator output voltage. For example: V_R = 1.8V, 2.5V, 2.8V or 3.0V.
3: TCV_OUT = (V_OUT-HIGH - V_OUT-LOW) * 10⁶ / (V_R * ∆Temperature), V_OUT-HIGH = Highest voltage measured over the tempera-
ture range. V_OUT-LOW = Lowest voltage measured over the temperature range.
4: Load regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is
tested over a load range from 1mA to the maximum specified output current. Changes in output voltage due to heating
effects are determined using thermal regulation specification TCV_OUT.
5: Thermal regulation is defined as the change in output voltage at a time t after a change in power dissipation is applied.
Specifications are for a current pulse equal to I_LMAX at V_IN = 6.0V for t = 10 msec.
6: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value
with a 1V differential applied.
7: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temper-
ature and the thermal resistance from junction to air. (i.e. T_A, T_J, θ_JA). Exceeding the maximum allowable power dissipa-
tion will cause the device operating junction temperature to exceed the maximum 150°C rating. Sustained junction
temperatures above 150°C can impact the device reliability.
8: V_TH-MIN = 2.55V and V_TH-MAX = 2.70V.
9: The Junction temperature is approximated by soaking the device under test at an ambient temperature equal to the
desired Junction temperature. The test time is small enough such that the rise in the Junction temperature over the Ambi-
ent temperature is not significant.
DS21702A-page 2
 2002 Microchip Technology Inc.