參數(shù)資料
型號: MIC2800-28YML
廠商: Micrel Semiconductor,Inc.
英文描述: Digital Power Management IC 2MHz, 600mA DC/DC w/Dual 300mA/300mA Low VIN LDOs
中文描述: 數(shù)字電源管理IC,600mA的直流/直流瓦特2MHz的/雙300mA/300mA低VIN LDO的
文件頁數(shù): 4/21頁
文件大?。?/td> 645K
代理商: MIC2800-28YML
Micrel, Inc.
MIC2800
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
).............................................0V to +6V
Enable Input Voltage (V
EN
)...................................0V to +6V
Power Dissipation, Internally Limited
(3)
Lead Temperature (soldering, 10 sec.)......................260°C
Storage Temperature (T
s
).........................–65°C to +150°C
EDS Rating
(4)
..................................................................2kV
June 2006
4
M9999-061406
(408) 955-1690
Operating Ratings
(2)
Supply voltage (V
IN
) .....................................+2.7V to +5.5V
Enable Input Voltage (V
EN
).....................................0V to V
IN
Junction Temperature (T
J
) ........................–40°C to +125°C
Junction Thermal Resistance
MLF-16 (
θ
JA
)......................................................45°C/W
Electrical Characteristics
(5)
V
IN
= EN1 = EN2 = LOWQ = V
OUT
I
OUTLDO1
= I
OUTLDO2
= 100μA; T
J
= 25°C,
bold
values indicate –40°C < T
J
< +125°C; unless noted.
Parameter
Conditions
UVLO Threshold
Rising input voltage during turn-on
UVLO Hysteresis
Ground Pin Current
LDO2 Only (EN1 = LOW)
(6)
+ 1V; C
OUTDC/DC
= 2.2μF, C
OUT1
= C
OUT2
= 2.2μF; I
OUTDC/DC
= 100mA;
Min
2.45
Typ
2.55
100
800
55
Max
2.65
1100
85
95
5
Units
V
mV
μA
μA
μA
μA
V
FB
= GND (not switching);
Ground Pin Current in
Shutdown
Ground Pin Current
(LOWQ mode)
All EN = 0V
0.2
I
DC/DC
< I
LDO1
< I
LDO2
< 10mA
DC/DC and LDO1 OFF; I
LDO2
< 10mA
30
20
160
23
60
80
70
μA
μA
μA
°
C
°
C
Over-temperature Shutdown
Over-temperature Shutdown
Hysteresis
Enable Inputs (EN1; EN2;
/
LOWQ )
Enable Input Voltage
Logic Low
Logic High
V
IL
< 0.2V
V
IH
> 1.0V
0.2
1
1
V
V
μA
μA
1.0
0.1
0.1
Enable Input Current
Turn-on Time (See Timing Diagram)
Turn-on Time
(LDO1 and LDO2)
Turn-on Time (DC/DC)
POR Output
VTH
EN2=V
IN
EN1=V
IN
EN2=V
IN
; I
LOAD
= 300mA; C
BYP
= 0.1μF
240
120
83
500
350
350
μs
μs
μs
Low Threshold, % of nominal (V
DC/DC
or V
LDO1
or V
LDO2
)
(Flag ON)
High Threshold, % of nominal (V
DC/DC
AND V
LDO1
AND
V
LDO2
) (Flag OFF)
POR Output Logic Low Voltage; IL = 250μA
Flag Leakage Current, Flag OFF
90
91
%
96
99
%
VOL
IPOR
SET INPUT
SET Pin Current Source
SET Pin Threshold Voltage
10
0.01
100
1
mV
μA
VSET = 0V
POR = High
0.75
1.25
1.25
1.75
μA
V
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