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MCP1702T-3302E/CB

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
2010 Microchip Technology Inc. DS22008E-page 1
MCP1702
Features:
• 2.0 µA Quiescent Current (typical)
• Input Operating Voltage Range: 2.7V to 13.2V
• 250 mA Output Current for Output Voltages 2.5V
• 200 mA Output Current for Output Voltages < 2.5V
• Low Dropout (LDO) Voltage
- 625 mV typical @ 250 mA (V
OUT
= 2.8V)
• 0.4% Typical Output Voltage Tolerance
• Standard Output Voltage Options:
- 1.2V, 1.5V, 1.8V, 2.5V, 2.8V,
3.0V, 3.3V, 4.0V, 5.0V
• Output Voltage Range 1.2V to 5.5V in 0.1V
Increments (50 mV increments available upon
request)
• Stable with 1.0 µF to 22 µF Output Capacitor
• Short-Circuit Protection
• Overtemperature Protection
Applications:
• Battery-powered Devices
• Battery-powered Alarm Circuits
• Smoke Detectors
•CO
2
Detectors
• Pagers and Cellular Phones
• Smart Battery Packs
• Low Quiescent Current Voltage Reference
•PDAs
•Digital Cameras
• Microcontroller Power
• Solar-Powered Instruments
• Consumer Products
• Battery Powered Data Loggers
Related Literature:
• AN765, “Using Microchip’s Micropower LDOs”,
DS00765, Microchip Technology Inc., 2002
• AN766, “Pin-Compatible CMOS Upgrades to
Bipolar LDOs”, DS00766,
Microchip Technology Inc., 2002
• AN792, “A Method to Determine How Much
Power a SOT-23 Can Dissipate in an Application”,
DS00792, Microchip Technology Inc., 2001
Description:
The MCP1702 is a family of CMOS low dropout (LDO)
voltage regulators that can deliver up to 250 mA of
current while consuming only 2.0 µA of quiescent
current (typical). The input operating range is specified
from 2.7V to 13.2V, making it an ideal choice for two to
six primary cell battery-powered applications, 9V
alkaline and one or two cell Li-Ion-powered
applications.
The MCP1702 is capable of delivering 250 mA with
only 625 mV (typical) of input to output voltage
differential (V
OUT
= 2.8V). The output voltage tolerance
of the MCP1702 is typically ±0.4% at +25°C and ±3%
maximum over the operating junction temperature
range of -40°C to +125°C. Line regulation is ±0.1%
typical at +25°C.
Output voltages available for the MCP1702 range from
1.2V to 5.0V. The LDO output is stable when using only
1 µF of output capacitance. Ceramic, tantalum or
aluminum electrolytic capacitors can all be used for
input and output. Overcurrent limit and
overtemperature shutdown provide a robust solution
for any application.
Package options include the SOT-23A, SOT-89-3, and
TO-92.
Package Types
1
3
2
V
IN
GND V
OUT
MCP1702
1
2
3
V
IN
GND V
OUT
MCP1702
3-Pin SOT-23A
3-Pin SOT-89
V
IN
3-Pin TO-92
12
V
OUT
V
IN
GND
Bottom
View
3
250 mA Low Quiescent Current LDO Regulator
MCP1702
DS22008E-page 2 2010 Microchip Technology Inc.
Functional Block Diagrams
Typical Application Circuits
+
-
MCP1702
V
IN
V
OUT
GND
+V
IN
Error Amplifier
Voltage
Reference
Overcurrent
Overtemperature
MCP1702
V
IN
C
IN
1µF Ceramic
C
OUT
1µF Ceramic
V
OUT
V
IN
3.3V
I
OUT
50 mA
GND
V
OUT
9V
Battery
+
2010 Microchip Technology Inc. DS22008E-page 3
MCP1702
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
V
DD
...............................................................................+14.5V
All inputs and outputs w.r.t. .............(V
SS
-0.3V) to (V
IN
+0.3V)
Peak Output Current...................................................500 mA
Storage temperature .....................................-65°C to +150°C
Maximum Junction Temperature...................................150°C
ESD protection on all pins (HBM;MM) 4kV; 400V
† 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.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, all limits are established for V
IN
= V
OUT(MAX)
+ V
DROPOUT(MAX)
, Note 1,
I
LOAD
= 100 µA, C
OUT
= 1 µF (X7R), C
IN
= 1 µF (X7R), T
A
= +25°C.
Boldface type applies for junction temperatures, T
J
of -40°C to +125°C. (Note 7)
Parameters Sym Min Typ Max Units Conditions
Input / Output Characteristics
Input Operating Voltage V
IN
2.7 — 13.2 V Note 1
Input Quiescent Current I
q
—2.0 5 µA I
L
= 0 mA
Maximum Output Current I
OUT_mA
250 — — mA For V
R
2.5V
50 100 — mA For V
R
< 2.5V, V
IN
2.7V
100 130 — mA For V
R
< 2.5V, V
IN
2.95V
150 200 — mA For V
R
< 2.5V, V
IN
3.2V
200 250 — mA For V
R
< 2.5V, V
IN
3.45V
Output Short Circuit Current I
OUT_SC
— 400 — mA V
IN
= V
IN(MIN)
(Note 1), V
OUT
= GND,
Current (average current) measured
10 ms after short is applied.
Output Voltage Regulation V
OUT
V
R
-3.0% V
R
±0.4% V
R
+3.0% V Note 2
V
R
-2.0% V
R
±0.4% V
R
+2.0% V
V
R
-1.0% V
R
±0.4% V
R
+1.0% V 1% Custom
V
OUT
Temperature
Coefficient
TCV
OUT
—50—ppm/°CNote 3
Line Regulation V
OUT
/
(V
OUT
XV
IN
)
-0.3 ±0.1 +0.3 %/V (V
OUT(MAX)
+ V
DROPOUT(MAX)
)
V
IN
13.2V, (Note 1)
Load Regulation
V
OUT
/V
OUT
-2.5 ±1.0 +2.5 %I
L
= 1.0 mA to 250 mA for V
R
2.5V
I
L
= 1.0 mA to 200 mA for V
R
2.5V,
V
IN
= 3.45V (Note 4)
Note 1: The minimum V
IN
must meet two conditions: V
IN
2.7V and V
IN
V
OUT(MAX)
+ V
DROPOUT(MAX)
.
2: V
R
is the nominal regulator output voltage. For example: V
R
= 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, or 5.0V. The
input voltage V
IN
= V
OUT(MAX)
+ V
DROPOUT(MAX)
or V
IN
= 2.7V (whichever is greater); I
OUT
= 100 µA.
3: TCV
OUT
= (V
OUT-HIGH
- V
OUT-LOW
) *10
6
/ (V
R
* Temperature), V
OUT-HIGH
= highest voltage measured over the
temperature 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. Changes in output
voltage due to heating effects are determined using thermal regulation specification TCV
OUT
.
5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its measured
value with an applied input voltage of V
OUT(MAX)
+ V
DROPOUT(MAX)
or 2.7V, whichever is greater.
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., T
A
, T
J
,
JA
). 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.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

MCP1702T-3302E/CB

Mfr. #:
Buy MCP1702T-3302E/CB
Manufacturer:
Microchip Technology
Description:
LDO Voltage Regulators LDO w/ Low Quiescent
Lifecycle:
New from this manufacturer.
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