Datasheet

 2002-2014 Microchip Technology Inc. DS20001752C-page 3
MCP1252/3
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
Power Supply Voltage, V
IN
...............................................6.0V
Voltage on Any Pin w.r.t. GND ............... -0.3V to (V
IN
+ 0.3V)
Output Short Circuit Duration ................................continuous
Storage Temperature Range.........................-65°C to +150°C
Ambient Temperature with Power Applied....-55°C to +125°C
Junction Temperature .................................................+150°C
ESD Ratings:
Human Body Model (1.5 k in Series with 100 pF)4kV
Machine Body Model (200 pF, No Series Resistance)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.
ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, all limits are specified for T
A
= -40°C to +85°C ("I" Temperature), T
A
= -40°C
to +125°C ("E" Temperature), SHDN
= V
IN
, C
IN
= C
OUT
= 10 µF, C
FLY
= 1 µF, I
OUT
= 10 mA. Typical values are for T
A
= +25°C.
Parameters Sym. Min. Typ. Max. Units Conditions
Selectable Output - MCP1252-33X50, MCP1253-33X50: SELECT = V
IN
, V
OUT
= 3.3V
Supply Voltage V
IN
2.1 — 5.5 V
Output Voltage Accuracy V
OUT
-2.5 ±0.5 +2.5 % 2.3V  V
IN
< 2.5V, I
OUT
80 mA
2.5V V
IN
5.5V, I
OUT
120 mA
Output Current I
OUT
80 100 — mA 2.3V  V
IN
< 2.5V
120 150 — mA 2.5V  V
IN
 5.5V
SELECT Logic Input Voltage High V
IH
1.4 — — V MCP1252-33X50, MCP1253-33X50
Selectable Output - MCP1252-33X50, MCP1253-33X50: SELECT = GND, V
OUT
= 5.0V
Supply Voltage V
IN
2.7 — 5.5 V
Output Voltage Accuracy V
OUT
-2.5 ±0.5 +2.5 % 2.7V V
IN
< 3.0V, I
OUT
40 mA
3.0V V
IN
5.5V, I
OUT
120 mA
Output Current I
OUT
40 80 — mA 2.7V  V
IN
< 3.0V
120 150 — 3.0V  V
IN
 5.5V
SELECT Logic Input Voltage Low V
IL
— — 0.4 V MCP1252-33X50, MCP1253-33X50
Adjustable Output - MCP1252-ADJ, MCP1253-ADJ
Supply Voltage V
IN
2.0 — 5.5 V
Output Voltage Adjustment Range V
OUT
1.5 — 5.5 V V
OUT(MAX)
< 2 x V
IN
FB Regulation Voltage V
FB
1.18 1.21 1.24 V MCP1252-ADJ, MCP1253-ADJ
ALL DEVICES
Supply Current I
DD
— 60 120 µA No load
Output Short-Circuit Current I
SC
— 200 — mA V
OUT
= GND, foldback current
Shutdown Current I
SHDN
— 0.1 2.0 µA SHDN = 0V
Power Efficiency  —81 —%V
IN
= 3.0V, V
OUT
= 5V
I
OUT
=120 mA
—68 — V
IN
= 3.6V, V
OUT
= 5V
I
OUT
=120 mA
SHDN
Logic Input Voltage Low V
IL
——0.4V
SHDN
Logic Input Voltage High V
IH
1.4 — — V
PGOOD Output Voltage P
GOOD_VOL
—0.01 — VI
PGOOD
= 0.5 mA
PGOOD Threshold Voltage V
TH
— 0.93V
OUT
—V
PGOOD Hysteresis V
HYS
— 0.04V
OUT
—V