Linear Power Filters (Ripple Blocker™)
Ripple Blocker™ Power Supply Output Noise Attenuators
Ripple Blocker
Even electronics work better
when they have peace and quiet.
Unmatched PSRR Performance for Noise-sensitive Applications

The MIC94300 integrated load switch and MIC94310 DC-DC regulator incorporate Micrel's Ripple Blocker active filter technology to provide high frequency ripple attenuation (switching noise rejection) for applications where switching noise cannot be tolerated by sensitive downstream circuits.

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P/N Stock /
Order
Rated
IOUT
VIN VOUT (V) Voltage Drop
Typ (mV)
VD-OUT @
Rated IOUT Typ (mV)
IGND Typ (µA) Tol Typ % Noise (µV) rms PSRR VOUT
≤1.2V
Ceramic
Cout "µCaP"
Turn On
Time Typ (µs)
VEN
(V)
θja (C/W) *=Reduced Height
Package
Min
(V)
Max
(V)
100Hz
(dB)
100KHz
(dB)
1MHz
(dB)
10MHz
(dB)
MIC94300
 200mA  1.8  3.6  Input Follower  170    138    98  0  58  60  55    X  40  3.6  173, 250  1.2x1.6*, 0.88x0.88 CSP
MIC94305
 500mA  1.8  3.6  Input Follower  170    150    98  0  55  60  55    X  90  3.6  92, 160  1.6x1.6*, 0.84x1.32 WLCSP
MIC94310
 200mA  1.8  3.6  1.2, 1.5, 1.8, 1.85, 2.5, 2.7, 2.8, 2.85, 3.0, 3.3    40  170  ±1  83  85  68  57  50  X  X  70  3.6  173, 250  1.2x1.6*, 0.88x0.88 CSP, SOT23-5
MIC94325
 500mA  1.8  3.6  Adj, 1.2, 1.5, 1.8, 2.8, 3.3    100  170  ±1  83  85  57  60      X  100  3.6  92, 160  1.6x1.6*, 0.84x1.32 CSP
MIC94345
 500mA  1.8  3.6  1.2, 1.5, 1.8, 2.8, 3.3    100  170  ±1  83  85  57  60      X  100  3.6  92, 160  1.6x1.6*, 0.84x1.32 CSP
MIC94355
 500mA  1.8  3.6  1.2, 1.5, 1.8, 2.8, 3.3    100  170  ±1  83  85  57  60      X  100  3.6  92, 160  1.6x1.6*, 0.84x1.32 CSP