IC
400mA Super LDO Linear Regulator
DESCRIPTION & FEATURES
概述及特點
FH5119
是一高效的、具有超½壓差的線性電壓調整器，
在輕負載條件下的典型壓差是
15mV
滿載條件下的典型
，
壓差為
600 mV，輸出電壓的精度可控制在 2%以內。
FH5119
具有
120 uA
的½漏電流，因此它½夠延長電池
的½½，FH5119 是專為手提電器及電池充電器特別設計
的器件。
The FH5119 is an efficient linear voltage regulator ,it
has extra low dropout .At light loads the typical dropout
voltage is 15mV, at full load the typical dropout voltage
is 600mV, The output voltage accuracy is better than
2%.
The FH5119 has low ground current at 120uA,so it can
help prolong battery life .The FH5119 is specially
designed for hand-held , battery –powered devices.
·
Typical 175mV dropout voltage at 150mA.
·
Low Ground current at 120uA.
·
Guaranteed 400mA output over the full operating
temperature range.
·
Extremely tight load and line regulation.
·
Low temperature coefficient.
·
Current and thermal limiting.
·
No-load stability.
400mA
FH5119
·
·
·
·
·
·
·
150mA
時的典型壓差是
175 mV.
120uA
漏電流.
在正常操½溫度範圍內，提供
400mA
電流.
極嚴的負載調整率及線性調整率.
½溫度係數.
具有電流及溫度限定.
無負載穩定性.
Applications
·
·
·
·
·
應用
·
·
·
·
·
應用於
SCSI
終端器
開關應用的快速
充電器
提供高效率的線性½量
電腦主板、顯示器、圖解板、DC/DC½換器：例可由
5V½至3.3V、3.3V½至2.8V或由3.3V
½至2.5V.
Active SCSI terminators.
Post regulators for switching supplies.
Battery chargers.
High-efficiency linear power supplies.
Computer motherboard, display, graphic card DC/DC
converter, such as 5V to 3.3V, 3.3V to 2.8V or 3.3V to
2.5V.
Marking Information and Pin Configuration
打標資訊及管腳配½
Pin configuration
引腳排列圖
SOT-89
SC59
3
Week NO.
Marking ID
Week NO.
1
2
Marking ID
1
2
3
1
IC
400mA Super LDO Linear Regulator
Typical Application
典型應用圖
400mA
FH5119
VOUT
VIN
FH5119
Cin
10uF
Cout
10uF
MAXIMUM RATINGS (T
a
=25
℃
)
最大額定值
Characteristic
特性參數
(Note 1)
Symbol
符號
Maximum
最大值
+6
400
150
180
（SOT-89）
230
(SOT-23)
Operating
ratings
(Note 2)
建議½用範圍
+2.8½5.5
Unit
單½
Supply Input Voltage (vin)
MAX Load Current
最大負載電流
Junction Temperature工½結溫
V
IN
I
load(max)
T
J
V
mA
0½125
°C
Thermal Impedance (Note 3)熱阻
θ
JA
°C / W
Storage Temperature Range儲存溫度
LeadTemperature (Soldering)10 Seconds
上錫溫度（10S）
Power Dissipation
耗散功率
T
STG
T
LEAD
PD
-10½150
260
Internally limited (note3)
°C
°C
3
IC
400mA Super LDO Linear Regulator
ELECTRICAL CHARACTERISTICS
電特性
Vin=Vout+1.0V;Cin=10UF;Cout=10uF;Iout=10mA;Tj=25°C unless otherwise noted
如無特殊說明，溫度為
25°C Vin=Vout+1.0V;Cin=10UF;Cout=10uF;Iout=10mA;
Parameter
參數
Symbol
符號
Test Conditions
測試條件
FH5119-1.5V
FH5119-1.8V
FH5119-2.5V
FH5119-2.8V
FH5119-3.0V
FH5119-3.3V
FH5119-5.0V
note4
VIN=VOUT+1 to 5.5V
I
OUT
=10mA to 250 mA
I
OUT
=10mA to 400 mA
I
OUT
=10mA
I
OUT
=150mA
I
OUT
=250mA
I
OUT
=400mA
f=120HZ
I
OUT
=10
mA
400mA
FH5119
Min.
最小值
1.470
1.764
2.45
2.744
2.96
3.234
4.9
Typ.
典型值
1.5
1.8
2.5
2.8
3.0
3.3
5.0
50
1
1
1.5
15
175
320
600
51
120
600
Max.
最大值
1.530
1.836
2.55
2.856
3.06
3.366
5.1
Unit
單½
Output voltage
Accuracy
輸出電壓精度
VOUT
V
Output Voltage
Temperature Coefficient
輸出電壓溫度係數
∆VOUT/∆T
∆VOUT/VOUT
∆VOUT/VOUT
ppm/℃
%
%
Line Regulation
線性調整率
Load Regulation
(note5
)
負載調整率
Dropout Voltage
(note6)
壓差
Ripple Rejection
紋波抑制
Ground Current
接地端電流
Current Limit
限制電流
VIN-VOUT
mV
PSRR
dB
μ
A
mA
I
ground
I
LIMIT
V
OUT
=0V
Note 1:
Exceeding the absolute maximum rating may damage the device.
Note 2:
The device is not guaranteed to function outside its operating rating.
Note 3:
The maximum allowable power dissipation at any TA (ambient temperature) is calculated using:
PD(MAX) = (TJ(MAX)- TA)/θJA. Exceeding the maximum allowable power dissipation will result in
excessive die temperature, and theregulator will go into thermal shutdown. See Table 1 and the “Thermal
Considerations” section for details.
Note 4:
Output voltage temperature coefficient is the worst-case voltage change divided by the total
temperature range.
Note 5:
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts
are tested for load regulation in the load range from 100µA to 400mA. Changes in output voltage due to
heating effects are covered by the thermal regulation specification.
Note 6:
Dropout voltage is defined as the input to output differential at which the output voltage drops 2%
below it’s nominal value measured at 1V differential.
4
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