SC1112(2001) 查看數據表（PDF） - Semtech Corporation
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SC1112 Datasheet PDF : 21 Pages
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SC1112
POWER MANAGEMENT
Pin Configuration
Ordering Information
5VSTBY
PWRGD
DELAY
VTTSEL
AGPSEL
ADJGATE
ADJSEN
CAP-
Top View
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
GND
VTTIN
VTTGATE
VTTSEN
AGPGATE
AGPSEN
FC
CAP+
(16-Pin SOIC or TSSOP)
Pin Descriptions
Pin # Pin Name
Pin Function
Part Number (1)(2) Package
SC1112STR
SC1112ASTR
SO-16
Temp
Range (TJ)
0° to 125°C
SC1112TSTR
SC1112ATSTR
TSSOP-16
0° to 125°C
SC1112EVB
Evaluation Board
Note:
(1) Only available in tape and reel packaging. A reel contains
2500 devices.
(2) Part Number (SO-16): SC1112STR = 1.25V and
SC1112ASTR = 1.2V.
Part Number (TSSOP-16): SC1112TSTR = 1.25V and
SC1112ATSTR = 1.2V.
1
5VSTBY 5V Standby input, supplies power for Ref, Charge Pump, Oscillator and FET controllers.
2
PWRGD Open collector Power Good Flag for VTT output.
3
DELAY
A capacitor from this pin to GND will program the delay for the Power Good Flag of VTT
output and the glitch immunity time.
4
VTTSEL TTL signal that programs the VTT output voltage:
VTTSEL = LOW, VTT = 1.2XV
VTTSEL = HIGH, VTT = 1.5V
5
AGPSEL TTL signal that programs the AGP output voltage:
AGPSEL = LOW, AGP = 1.5V
AGPSEL = HIGH, AGP = 3.3V
6
ADJGATE Gate drive output for AGP.
7
ADJSEN Sense input for ADJ.
8
CAP-
Negative connection to boost capacitor.
9
CAP+
Positive connection to boost capacitor.
10
FC
Filter capacitor for the internal charge pump should be connected from this pin to GND.
11
AGPSEN Sense input for AGP.
12
AGPGATE Gate drive output for AGP.
13
VTTSEN Sense input for VTT.
14
VTTGATE Gate drive output for VTT.
15
VTTIN
Short circuit sense line connected to the 3.3Vin.
16
GND
Ground.
NOTE: (1) All logic level inputs and outputs are open collector TTL compatible.
2001 Semtech Corp.
6
www.semtech.com
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