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MCP19124 Datasheet(PDF) 26 Page - Microchip Technology

Part # MCP19124
Description  Digitally-Enhanced Power Analog Synchronous Low-Side Dual-Loop PWM Controller
PDF  236 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP19124 Datasheet(HTML) 26 Page - Microchip Technology

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MCP19124/5
DS20005619A-page 26
 2016 Microchip Technology Inc.
Common-Mode
Range
VCMR
GND - 0.3
—
VBG +0.3
V
Note 4
Common-Mode
Rejection Ratio
CMRR
—
70
—
dB
Pedestal Voltage
Pedestal Voltage
Level
VZC
—
BG
—
V
Error Amplifier (EA1)
Input Offset Current
IOS
—
2
—
µA
Trimmed
Error Amplifier PSRR
PSRR
—
99
—
dB
VCM = BG
Common-Mode Input
Range
VCM
0.8V
—
3
V
Note 4
Common-Mode
Rejection Ratio
CMRR
—
65
—
dB
VCM = 0V to BG
Open-Loop Voltage
Gain
AVOL
—70
—
dB
Note 4
Transconductance
Gm
180
200
220
µA/V
Trimmed
Gain-Bandwidth
Product
GBWP
—
3.5
—
MHz
Note 4
Error Amplifier (EA2)
Input Offset Voltage
VOS
—
2
—
mV
Trimmed
Error Amplifier PSRR
PSRR
—
99
—
dB
VCM=BG
Common-Mode Input
Range
VCM
0.8
—
3
V
Note 4
Common-Mode
Rejection Ratio
CMRR
—
65
—
dB
VCM = 0V to BG
Open-Loop Voltage
Gain
AVOL
—70
—
dB
Note 4
Transconductance
Gm
180
200
220
µA/V
Trimmed
Gain-Bandwidth
Product
GBWP
—
3.5
—
MHz
EA1/EA2 Error Amplifiers Output Clamp
Maximum Positive
Output Offset Voltage
(EA not in control of
loop)
VEA_OUTOFF_MAX
—
—
+50
mV
Applies to EA not in control
of the loop
Peak Current Sense Input
4.2
Electrical Characteristics (Continued)
Electrical Specifications: Unless otherwise noted, VIN =12V, FSW = 150 kHz, TA =+25°C. Boldface specifications
apply over the TA range of -40°C to +125°C.
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Note 1:
Refer to Section 14.0 “Power-Down Mode (Sleep)”.
2: VDD is the voltage present at the VDD pin.
3: Dropout voltage is defined as the input-to-output voltage differential at which the output voltage drops 2%
below its nominal value measured at a 1V differential between VIN and VDD.
4: Ensured by design, not production tested.
5: These parameters are characterized, but not production tested.
6: The VDD LDO will limit the total source current to a maximum of 35 mA. Individually each pin can source a
maximum of 15 mA.



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