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參數(shù)資料
| 型號(hào)： | MIC2810 |
| 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(yè)數(shù)： | 4/18頁(yè) |
| 文件大小： | 520K |
| 代理商： | MIC2810 |
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Micrel, Inc.
MIC2810
Absolute Maximum Ratings
(1)
April 2007
4
M9999-041107-B
Supply Voltage (V
IN
, V
IN1
, V
IN2
)............................... 0V to 6V
Enable Input Voltage (V
EN
, V
EN1
, V
EN2
)...................0V to V
IN
Power Dissipation ..................................Internally Limited
(3)
Lead Temperature (soldering, 10 sec.)......................260°C
Storage Temperature (T
s
).........................–65°C to +150°C
ESD Rating
(4)
..................................................................2kV
Operating Ratings
(2)
Supply Voltage (V
IN
, V
IN2
)................................. 2.7V to 5.5V
Supply Voltage (V
IN1
)...................................... 1.65V to 5.5V
Enable Input Voltage (V
EN
, V
EN1
, V
EN2
)...................0V to V
IN
Junction Temperature (T
J
) ........................–40°C to +125°C
Junction Thermal Resistance
MLF-16 (
θ
JA
)......................................................56°C/W
Electrical Characteristics
(5)
V
IN
= V
IN1
= V
IN2
= EN1 = EN2 = EN = /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
LDO1 or LDO2 (EN = GND; EN1 or EN2 = GND)
(6)
+ 1V; C
OUTDC/DC
= 2.2μF, C
LDO1
= C
LDO2
= 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)
EN = EN1 = EN2 = 0V
0.2
I
DC/DC
< I
LDO1
< I
LDO2
< 10mA (/LOWQ = GND)
LDO1 or LDO2 (EN = GND; EN1 or EN2 = GND);
I
OUT
< 10mA (/LOWQ = GND)
38
20
60
80
70
μA
μA
μA
Over-temperature Shutdown
Over-temperature Shutdown
Hysteresis
Enable Inputs (EN; EN1; EN2;
/
LOWQ )
Enable Input Voltage
160
23
°
C
°
C
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
Turn-on Time
(LDO1 and LDO2)
Turn-on Time (DC/DC)
240
500
μs
(/LOWQ = V
IN
; I
LOAD
= 300mA); (/LOWQ = GND; I
LOAD
=
10mA)
83
350
μs
POR Output
VTH
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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