参数资料
| 型号： | XRP2997IDBTR-F |
| 厂商： | Exar Corporation |
| 文件页数： | 2/8页 |
| 文件大小： | 0K |
| 描述： | IC CONV DDR DDR2 DDR3 8SOIC |
| 特色产品： | XRP2997 Regulator |
| 标准包装： | 1 |
| 应用： | 转换器，DDR，DDR2，DDR3 |
| 输入电压： | 1.1 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm Width）裸露焊盘 |
| 供应商设备封装： | 8-SOIC-EP |
| 包装： | 标准包装 |
| 其它名称： | 1016-1702-6 |
X R P 2 9 9 7
2 A D D R I / I I / I I I B u s T e r m i n a t i o n R e g u l a t o r
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
OPERATING RATINGS
Operating Temperature Range ................. -40°C to +85°C
Thermal Resistance θ JA ...................................... 60°C/W
Thermal Resistance θ JC ...................................... 16°C/W
rating conditions for extended periods of time may affect
reliability.
V IN , V REF , V CNTL .......................................... -0.3V to 6.0V
Junction Temperature Range.................. -40°C to +150°C
Storage Temperature ............................ -65°C to +150°C
Lead Temperature (Soldering, 10 sec).................... 260°C
ELECTRICAL SPECIFICATIONS
Specifications are for an Operating Ambient Temperature of T A = 25°C only; limits applying over the full Operating Junction
Temperature range are denoted by a “?”. Minimum and Maximum limits are guaranteed through test, design, o r statistical
correlation. Typical values represent the most likely parametric norm at T A = 25°C, and are provided for reference purposes
only. Unless otherwise indicated, V IN = 1.8V/1.5V, V CNTL = 3.3V, V REF = 0.5xV IN , C OUT = 22μF (ceramic), T A = 25°C.
Parameter
V IN , Input Voltage Range
V CNTL , Input Voltage Range
V OUT , Output Voltage
Min.
1.1
2.375
Typ.
1.8/1.5
3.3
V REF
Max.
5.5
5.5
Units
V
V
V
Conditions
Keep V CNTL ≥V IN during power on and
power off sequences (note 4)
Keep V CNTL ≥V IN during power on and
power off sequences (note 4)
I OUT = 0mA
V OS , Output Voltage Offset
V LOR , Load Regulation
I Q , Quiescent Current
I CNTL , Operating Current of V CNTL
I REF , Bias Current of V REF
-20
-20
-20
0
2
1
+20
+20
+20
90
2.5
1
mV
mV
mV
μA
mA
μA
I OUT = 0mA (note 1)
I OUT = 0.1mA to +2A
I OUT = 0.1mA to -2A
V REF < 0.2V, V OUT = OFF
I OUT = 0mA
V REF = 1.25V
I IL , Current Limit
2.4
3
A
Source: V OUT =0.33xV REF
Sink: V OUT =0.95xV IN (note 3)
R DSCHG , Output Discharge
Resistance
18
25
?
V REF =0V, V OUT =0.3V
Thermal Protection
T SD , Thermal Shutdown
Temperature
Thermal Shutdown Hysteresis
160
30
°C
°C
3.3V ≤ V CNTL ≤ 5V, guaranteed by design
(note 4)
Guaranteed by design
Shutdown Specifications
V TRIGGER , Shutdown Threshold
0.6
0.2
V
Output ON
V REF = 0V ? 1.25V
Output OFF
V REF = 1.25V ? 0V
Note
Note
Note
Note
1:
2:
3:
4:
V OS offset is the voltage measurement defined as V OUT subtracted from V REF .
Load regulation is measured at constant junction temperature, using pulse testing with a short ON time.
Current limit is measured by applying a short duration current pulse.
In order to safely operate your system, V CNTL must be > V IN .
? 2012 Exar Corporation
2/8
Rev. 1.2.0
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