SC1462A View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC1462A' PDF : 9 Pages View PDF
5+ "$ )
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified:
TA = -40°C to 85°C, SHDN = GND, 1.65V ≤ VIN ≤ 5.5V, Frequency =32 kHz, CIN = COUT = CBUCKET = 1.0µF (ESR = 0.3Ω).
Parameter
Time to Regulation at Turn on(2)
Over Temperature Protection (3)
Over Temperature Hysteresis (3)
Symbol
tON
O.T.
O.T.H.
Conditions
IO = 0 to 15mA, VIN = 5.0V
MIN TYP MAX Units
350
us
140
°C
20
°C
NOTES:
(1) All electrical characteristics are for the application circuit on page 1.
(2) Soft start functionality is performed along with short circuit protection. If VOUT is less than VIN - 200mV, then all switches are turned off and VOUT
is charged with a 100mA current source from VIN. When VOUT reaches VIN - 200mV all switches are enabled.
(3) Guaranteed by design.
(4) This device is ESD sensitive. Use of standard ESD handling precautions is required.
(5) The internal switch resistance, the capacitor ESR and the oscillators switching frequency all contribute to ROUT. See the CAPACITOR SELECTION
section for information on applying the ROUT specification.
(6) The parameter RSW is equal to the total resistance of all 4 internal switches. See the CAPACITOR SELECTION section for information on applying
the RSW specification. The parameter was calculated from actual output resistance and the equation on page 6 for ROUT.
2001 Semtech Corp.
3
www.semtech.com
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