el7560 Intersil Corporation, el7560 Datasheet - Page 4

• Manufacturer Part Number: el7560
• Description: Programmable Cpu Power Supply Unit
• Manufacturer: Intersil Corporation

EL7560 Pin Descriptions
NOTE:
1. The oscillator and voltage doubler operate normally when V
NUMBER
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
PWRGD
C
NAME
C
TEST
C
V
V
V
VID3
VID2
VID1
VID0
SLOPE
C2V
V
C
V
C
V
V
V
OT
OT
LX
LX
LX
LX
LX
OSC
FB
SSP
SSP
SSP
REF
DD
P
SS
P
HI
IN
IN
+
-
Negative input for the charge pump bootstrap capacitor. (Note 1)
Positive input for the charge pump bootstrap capacitor. (Note 1)
Voltage doubler output. Pin requires at least a 1µF capacitor to GND. (Note 1)
Ground return for the control circuitry.
Positive supply for the high side driver. This pin is bootstrapped from the LX pin with a 0.1µF capacitor.
Common connection between the two large internal FETs. External inductor connection.
Same as pin 6.
Same as pin 6.
Same as pin 6.
Same as pin 6.
This is test pin and must remain grounded at all times
Pin pulls high when the FB pin is within - 7%(typ) of its programmed value.
Overtemperature indicator. Pulls low when the die temperature exceeds 135°C. Pin has 10mA pull-up.
A logic high on OUTEN enables the regulator (Note 1)
Bit 3(MSB) of the output voltage select DAC.
Bit 2 of the output voltage select DAC.
Bit 1 of the output voltage select DAC.
Bit 0(LSB) of the output voltage select DAC.
Ground return to the buck regulator.
Same as pin 19.
Positive power supply input to the buck regulator.
Same as pin 19.
Same as pin 21.
Pin supplies power to the internal control circuitry.
Oscillator timing capacitor. Oscillator Frequency is approximately: F
approximately 5%. (Note 1)
Slope compensation capacitor.
External reference input pin.
Voltage feedback pin for the buck regulator.
4
DD
EL7560
exceeds V
DD-ON
DESCRIPTION
threshold, independent of the OUTEN logic level.
OSC
(Hz)=0.0001/C
OSC
(F). The duty cycle is