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MCP1700
DS21826A-page 4
2003 Microchip Technology Inc.
TEMPERATURE SPECIFICATIONS
Output Noise
eN
—3
—
V/(Hz)1/2 IL = 100 mA, f = 1 kHz, COUT = 1 F
Power Supply Ripple
Rejection Ratio
PSRR
—
44
—
dB
f = 100 Hz, COUT = 1 F, IL = 50 mA,
VINAC = 100 mV pk-pk, CIN = 0 F,
VR =1.2V
Thermal Shutdown Protection
TSD
—140
—
°C
VIN = VR + 1, IL = 100 A
Electrical Characteristics: Unless otherwise specified, all limits are established for VIN = VR + 1, ILOAD = 100 A,
COUT = 1 F (X5R), CIN = 1 F (X5R), TA = +25°C.
Boldface type applies for junction temperatures, TJ (Note 1) of -40°C to +125°C. Parameters
Sym
Min
Typ
Max
Units
Conditions
Temperature Ranges
Specified Temperature Range
TA
-40
+125
°C
Operating Temperature Range
TA
-40
+125
°C
Storage Temperature Range
TA
-65
+150
°C
Thermal Package Resistance
Thermal Resistance, SOT23-A
θJA
—335
—
°C/W
Minimum Trace Width Single Layer
Board
—
230
—
°C/W
Typical FR4 4-layer Application
Thermal Resistance, SOT89
θJA
—
52
—
°C/W
Typical, 1 square inch of copper
Thermal Resistance, TO-92
θJA
—131.9
—
°C/W
EIA/JEDEC JESD51-751-7
4-Layer Board
Note 1: 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., TA, TJ, θJA). Exceeding the maximum allowable power
dissipation 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.
DC CHARACTERISTICS (CONTINUED)
Electrical Characteristics: Unless otherwise specified, all limits are established for VIN = VR + 1, ILOAD = 100 A, COUT = 1 F
(X5R), CIN = 1 F (X5R), TA = +25°C.
Boldface type applies for junction temperatures, TJ (Note 6) of -40°C to +125°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note 1:
The minimum VIN must meet two conditions: VIN ≥ 2.3V and VIN ≥ (VR + 3.0%) +VDROPOUT.
2:
VR is the nominal regulator output voltage. For example: VR = 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 5.0V. The
input voltage (VIN = VR + 1.0V); IOUT = 100 A.
3:
TCVOUT = (VOUT-HIGH - VOUT-LOW) *10
6 / (VR * Temperature), VOUT-HIGH = highest voltage measured over the
temperature range. VOUT-LOW = lowest voltage measured over the temperature range.
4:
Load regulation is measured at a constant junction temperature using low duty cycle pulse testing. Changes in output
voltage due to heating effects are determined using thermal regulation specification TCVOUT.
5:
Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its measured
value with a VR + 1V differential applied.
6:
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., TA, TJ, θJA). Exceeding the maximum allowable power
dissipation 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.
7:
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
ambient temperature is not significant.