SIP12502DMP-20-E3 Просмотр технического описания (PDF) - Vishay Semiconductors
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SIP12502DMP-20-E3 Datasheet PDF : 11 Pages
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SiP12502
Vishay Siliconix
Product is End of Life 3/2014
PIN CONFIGURATION AND TRUTH TABLE
PowerPAK MLP33-6
XSHD
1
VIN
2
VOUT
3
6
LX
5 GND
4 PGOOD
Top View
ORDERING INFORMATION
Part Number
SiP12502DMP-20-E3
SiP12502DMP-33-E3
SiP12502DMP-50-E3
Voltage Output
2.0 V
3.3 V
5.0 V
Temperature Range
- 40 °C to 85 °C
PIN DESCRIPTION
Pin Number Name
Function
1
XSDH Logic controlled shutdown input, XSHD = high: normal operation, XSHD = low: shutdown
2
VIN
Input voltage
3
VOUT Output of the boost converter and power source for the IC battery
4
PGOOD Power good comparator output
5
GND Signal and power ground
6
LX
Switch pin
Marking
502A
502E
502G
PIN FUNCTIONS
XSHD (Pin 1)
XSHD is a logic-level shutdown control pin. When XSHD is
low, the IC’s switching is disabled and an antiringing switch
is connected between LX and VIN. When XSHD is high, the
IC is working in normal operation.
VIN (Pin 2)
VIN is the pin connected to the battery input voltage. At start-
up, SIP12502 is powered from the voltage at the VIN pin.
Once VOUT exceeds VIN, the SIP12502 is powered from
VOUT. This increases the drive to the gate of the internal
power switch, to allow higher maximum output currents and
higher converter efficiency.
VOUT (Pin 3)
VOUT is the output of the boost converter and also the power
source for the IC.
PGOOD (Pin 4)
PGOOD is the open-drain output pin of the power good
comparator. It is low when VOUT is 10 % lower than its
regulation voltage. After the soft start is finished and VOUT is
higher than 90 % of its regulation voltage, PGOOD will go
high. Its hysteresis is 2 %.
GND (Pin 5)
GND is the ground pin for signal and power ground.
LX (Pin 6)
LX is connects to the drain of the internal power MOSFET
(boost switch). Externally, the LX pin should be connected to
the boost inductor and Schottky diode. If the inductor current
falls to zero, or XSHD is low, an internal antiringing switch is
connected from LX to VIN to minimize EMI.
www.vishay.com
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Document Number: 73578
S09-1456-Rev. B, 03-Aug-09
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