- 您现在的位置：买卖IC网 > PDF目录224503 > MSK5920-3.3HRHS (MS KENNEDY CORP) RAD TOLERANT ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR PDF资料下载
参数资料
| 型号： | MSK5920-3.3HRHS |
| 厂商： | MS KENNEDY CORP |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | RAD TOLERANT ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR |
| 中文描述： | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.4 V DROPOUT, CSFM5 |
| 封装： | HERMETIC SEALED, SIP-5 |
| 文件页数： | 3/8页 |
| 文件大小： | 431K |
| 代理商： | MSK5920-3.3HRHS |
APPLICATION NOTES
PIN FUNCTIONS
VIN - This pin provides power to all internal circuitry in-
cluding bias, start-up, thermal limit and overcurrent latch.
Input voltage range is 2.9V to 6.5V.
GND - Internally connected to ground, this pin should be
connected externally by the user to the circuit ground.
SHUTDOWN - There are two functions to the SHUTDOWN
pin. It may be used to disable the output voltage or to
reset a current latch condition. To activate the shutdown/
reset functions the user must apply a voltage greater than
1.6V to the SHUTDOWN pin. The output voltage will turn
on when the SHUTDOWN pin is pulled below the thresh-
old voltage. If the SHUTDOWN pin is not used, it should
be connected to ground. It should be noted that with the
shutdown pin tied to ground, a current latch condition
can only be reset by cycling power off, then on.
VOUT - This is the output pin for the device.
INPUT POWER SUPPLY BYPASSING
3
FIGURE 1
Overcurrent protection is provided by the MSK 5920RH
series through the use of a timed latch off circuit. The
internal latch timeout is triggered by an overcurrent con-
dition. To allow for start up surge currents, the timeout is
approximately 5.5mS at 25°C. If the overcurrent condi-
tion remains at the end of the timeout cycle, the regulator
will latch off until the latch is reset. Reset the latch by
pulling the shutdown pin high or cycling VIN off then back
on. A thermal limit condition will trigger the latch with no
time out delay.
OVERCURRENT LATCH
To maximize transient response and minimize power sup-
ply transients it is recommended that a 100μF tantalum
capacitor is connected between VIN and ground. A 0.1μF
ceramic capacitor should also be used for high frequency
bypassing.
CURRENT LIMIT AND SOA
The MSK 5920RH current limit function is directly af-
fected by the input and output voltages. Figure 1 illus-
trates the relationship between VIN and ICL for various
output voltages. It is very important for the user to con-
sult the SOA curve when using input voltages which re-
sult in current limit conditions beyond 4.5 Amps. When
using input voltages which result in current limit above
4.5 Amps, the user must maintain output current within
the SOA curve to avoid damage to the device. Note that 5
Amp maximum is due to current carrying capability of the
internal wirebonds.
REPLACING THE OMR9601/IRUH33P253AIM
When the MSK 5920-2.5RH is used as a replacement
for the IR OMR9601 or IRUH33P253B, the user should
recognize that the MSK 5920-2.5RH does not contain in-
ternal tantalum capacitors on the input and output. MSK
does not typically use tantalum capacitors in space level
standard products of this nature.
Rev. P 1/11
OUTPUT CAPACITOR SELECTION
Low ESR output capacitors are required to maintain regu-
lation and stability. Four CWR29FB227 (AVX PN
TAZH227K010L) tantalum capacitors in parallel with ce-
ramic decoupling capacitors (0.1μF typical) provides suf-
ficient gain and phase margin for most applications. The
maximum ESR specification for the CWR29FB227 capaci-
tor is 180mΩ at 100kHz and is sufficient for many appli-
cations. MSK has found through full WCCA that screen-
ing for a maximum ESR of 57mΩ ensures EOL stability
criteria to be met for many applications with the most
stringent requirements. The typical ESR of the
TAZH227K010L from AVX is 49mΩ . Analysis of the fi-
nal design is recommended to ensure stability require-
ments are met.
相关PDF资料 |
PDF描述 |
|---|---|
| MSK5920-3.3HRHU | RAD TOLERANT ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR |
| MSK5920-3.3KRHD | RAD TOLERANT ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR |
| MSK5920-2.8ERHD | RAD TOLERANT ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR |
| MSK5920-2.8ERHS | RAD TOLERANT ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR |
| MSK5920-2.8ERHU | RAD TOLERANT ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MSK600 | 制造商:MSK 制造商全称:M.S. Kennedy Corporation 功能描述:WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
| MSK601 | 制造商:MSK 制造商全称:M.S. Kennedy Corporation 功能描述:WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
| MSK601B | 制造商:MSK 制造商全称:M.S. Kennedy Corporation 功能描述:WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
| MSK604 | 制造商:MSK 制造商全称:M.S. Kennedy Corporation 功能描述:NEGATIVE OUTPUT WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
| MSK604B | 制造商:MSK 制造商全称:M.S. Kennedy Corporation 功能描述:NEGATIVE OUTPUT WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
发布紧急采购，3分钟左右您将得到回复。