BM9168 [BOOKLY]
CMOS LDO;
| 型号： | BM9168 |
| 厂家： | 
Bookly Micro electronic |
| 描述： | CMOS LDO |
| 文件： | 总7页 (文件大小：214K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BM9168
BOOKLY MICRO
250mA CMOS LDO
GENERAL DESCRIPTION
FEATURES
The BM9168 family is a positive voltage linear regulator
developed utilizing CMOS technology featured low quiescent
current (10uA typ.), low dropout voltage, and high output
voltage accuracy. Built-in low on-resistance transistor provides
low dropout voltage and large output current. A 1.0µF or
greater can be used as an output capacitor.
Very Low Dropout Voltage
Low Current Consumption: Typ. <20uA
Output Voltage: 1.5V, 1.8V , 2.5V , 3.0V, 3.3V
High Accuracy Output Voltage: +/- 1.5%
Guaranteed >250mA Output
Input Range of 1.8V to 7.0V
Thermal Shutdown
The SOT-23-3 miniaturized package are recommended for
configuring portable devices and large current application,
respectively.
High PSRR to 55dB
Compact Package: SOT-23-3, SOT-89
Factory Pre-set Output Voltages
Short Circuit Current Fold-Back
Low Temperature Coefficient
These robust devices are designed to prevent device failure
under the worst operation condition with both Thermal
Shutdown and Current Fold-back.
APPLICATIONS
Battery-powered devices , like DSC , MP3 ,
portable DVD , PHS , Wirless- Lan
Personal communication devices
MP4
Home electric/electronic appliances
PC peripherals ( PC card)
, Hard-disc
Pin define
3
2
3
2
1
1
SOT23-3
pin1 = GND ,
pin2 = Vout ,
Pin3 = Vin
SOT89
pin1 ＝GND
pin2 = Vin
pin3 = Vout
,
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BM9168
BOOKLY MICRO
250mA CMOS LDO
BLOCK DIAGRAM
IN
OUT
Overcurrent
Shutdown
R1
Thermal
Shutdown
-
AMP
+
R2
GND
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BM9168
BOOKLY MICRO
250mA CMOS LDO
ORDERING INFORMATION
Part Number
BM9168EIM23
BM9168EIM89
BM9168DIM23
BM9168DIM89
BM9168CIM23
BM9168CIM89
BM9168BIM23
BM9168BIM89
BM9168FIM23
BM9168FIM89
BM9168AIM23
BM9168AIM89
Output Voltage
Temperature Range
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
Package
SOT-23-3
SOT-89
1.5V
1.5V
1.8V
SOT-23-3
SOT-89
1.8V
2.5V
SOT-23-3
SOT-89
2.5V
2.8V
2.8V
3.0V
3.0V
3.3V
3.3V
SOT-23-3
SOT-89
SOT-23-3
SOT-89
SOT-23-3
SOT-89
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BM9168
BOOKLY MICRO
250mA CMOS LDO
ABSOLUTE MAXIMUM RATINGS
OPERATING RATINGS
Input Voltage …………….……………………………. +7V
Ambient Temperature Range (TA) ……... -40℃ to +85℃
Junction Temperature Range …..…... -40℃ to +125℃
Output Current …………………….……
PD / (VIN - Vo)
Output Voltage …………………… GND-0.3V to VIN+0.3V
ESD Classification ………………………………………… B
THERMAL INFORMATION
Parameter
Maximum
Unit
SOT-23-3
110
℃/W
Thermal Resistance (Θjc)
Thermal Resistance (Θja)
SOT-89
SOT-23-3
SOT-89
18
325
180
300
℃/W
SOT-23-3
mW
Internal Power Dissipation (PD)
SOT-89
SOT-89
550
2750*
(ΔT = 100℃)
Maximum Junction Temperature
Maximum Lead Temperature (10 Sec)
150
300
℃
℃
*With Junction sink capable of twice times ofΘjc
Caution: Stress above the listed absolute rating may cause permanent damage to the device.
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BM9168
BOOKLY MICRO
250mA CMOS LDO
ELECTRICAL CHARACTERISTICS
TA = +25℃; unless otherwise noted
BM9168
Unit
Parameter
Test Conditions
Min.
Note 1
-1.5
Typ.
Max.
7
Input Voltage
V
Output Voltage Accurancy
Io = 1mA to 250mA
Io=100mA, VOUT=VOUT-2.0%, VOUT>2.5V
Io=100mA, VOUT=VOUT-2.0%, VOUT<=2.0V
VOUT > 1.2V
1.5
%
150mV
210mV
mV
mV
Dropout Voltage
Output Current
Short Circuit Current
Current Limit
250
mA
VOUT < 1.05V
350
mA
mA
uA
VOUT>1.2V
2350
10
Quiescent Current
Ground Pin Current
VIN=5V, No Load
5
25
25
I = 1mA to 250mA
10
uA
IOUT=5mA, VIN=VOUT+1 to VOUT+2, VOUT <= 3.0V
-0.15
-0.3
0.03
0.06
0.2
55
0.15
0.3
1
Line Regulation
Load Regulation
%
I
OUT=5mA, VIN=VOUT+1 to VOUT+2, VOUT > 3.0V
Io=1mA to 250mA
f=1KHz
%
dB
IO = 100mA
f=10KHz
Power Supply Rejection
51
CO=10µF ceramic
f=100KHz
46
Over Temperature Shutdown
Over Temperature Hystersis
Output Noise
150
30
℃
℃
F=10Hz to 100kHz, CO=10µF, IO = 10mA
30
μVrms
ppm/℃
Output Voltage Temp. Coeff.
25
Note 1. VIN(MIN) = VOUT + 0.3V
DETAILED DESCRIPTION
The BM9168 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current
protection, thermal shutdown, and short circuit protection.
The P-channel pass transistor receives data from the error amplifier, over-current shutdown, short output protection, and thermal
protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current
and Thermal shutdown circuits become active when the junction temperature exceeds 150℃, or the current exceeds 350mA.
During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops
below 120℃.
The BM9168 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents
over-stress. The BM9168 also incorporates current fold-back to reduce power dissipation when the output is short-circuited. This
feature becomes active when the output drops below 1.05V, and reduces the current flow by 65%. Full current is restored when
the voltage exceeds 1.05V.
EXTERNAL CAPACITOR
The BM9168 is stable with an output capacitor to ground of 1µF. It can keep stable even with higher or poor ESR capacitors. A
second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be larger than 0.1µF
to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A “quiet” ground termination is desirable.
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BM9168
BOOKLY MICRO
250mA CMOS LDO
TYPICAL ELECTRICAL CHARACTERISTICS
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BM9168
BOOKLY MICRO
250mA CMOS LDO
PACKAGE DIMENSION
SOT-23-3 (M23)
D
3
b1
With Plating
A
A1
A2
b
b
Base Metal
b1
c
Section B-B
c1
D
E
E1
L
1
2
e
b
L1
e
e1
e1
θ
θ1
θ2
L
See Section B-B
L1
SOT-89 (M89)
D
D1
φ1.0
C
e
e1
A
L
b
b1
C
D
D1
H
E
e1
e
b
b
b1
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