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ML4900CS Datasheet(PDF) 2 Page - Micro Linear Corporation

Part # ML4900CS
Description  High Current Synchronous Buck Controller
Download  8 Pages
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Manufacturer  MICRO-LINEAR [Micro Linear Corporation]
Direct Link  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4900CS Datasheet(HTML) 2 Page - Micro Linear Corporation

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ML4900
2
PIN CONFIGURATION
PIN DESCRIPTION (Pin Number in Parentheses is for TSSOP Version)
PIN
NAME
FUNCTION
1 (1)
D0
LSB input to the DAC which sets
the output voltage
2 (2)
D1
Input to the DAC which sets the
output voltage
3 (3)
D2
Input to the DAC which sets the
output voltage
4 (4)
D3
MSB input to the DAC which sets
the output voltage
5 (6)
SHDN
Grounding this pin shuts down the
regulator
6 (8)
PWR GOOD
This open collector output goes
low whenever SHDN goes low or
when the output is not within
+10% of its nominal value
7 (9)
VREF
Bypass connection for the internal
3.5V reference
PIN
NAME
FUNCTION
8 (10)
GND
Analog signal ground
9 (11)
VFB
Output voltage feedback pin
10 (12) ISENSE
Current sense input
11 (13) COMP
Connection for the compensation
and optional soft-start delay
network
12 (15) PWR GND
Power ground
13 (16) N DRV L
Synchronous rectifier driver output
14 (17) N DRV H
Buck switch driver output
15 (19) VDD
12V power supply input
16 (20) PROTECT
Connection for the integrating
current limit network and the
UVLO monitor for the 5V supply
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
D0
D1
D2
D3
SHDN
PWR GOOD
VREF
GND
PROTECT
VDD
N DRV H
N DRV L
PWR GND
COMP
ISENSE
VFB
TOP VIEW
ML4900
16-Pin Narrow SOIC (S16N)
D0
D1
D2
D3
NC
SHDN
NC
PWR GOOD
VREF
GND
PROTECT
VDD
NC
N DRV H
N DRV L
PWR GND
NC
COMP
ISENSE
VFB
TOP VIEW
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
ML4900
20-Pin TSSOP (T20)


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