NCP1588MTR2G

NCP1588, NCP1589
http://onsemi.com
10
b.. Output Filter Double Pole Frequency
F
lc
+ 2.653kHz
F
lc
:+
1
2 @ p @ L
OUT
@ C
OUT
Ǹ
c.. ESR Zero Frequency:
F
ESR
+ 7.368kHz
F
ESR
:+
1
2 @ p @ C
OUT
@ C
ESR
Step 1: Set a value for R1 between 2 kW and 5 kW
R1 :+ 4.12kW
Step 2: Pick compensation DC gain (R2/R1) for desired
close loop bandwidth.
V
RAMP
:+ 1.1V
R2 :+ R1 @
ǒ
V
RAMP
V
IN
Ǔ
@
ǒ
F
cross_over
F
lc
Ǔ
R2 + 17.085kW
Step 3: Place 1st zero at half the output filter double pole
frequency.
C2 :+
2 @ L
OUT
@ C
OUT
Ǹ
R2
C2 + 7.024 10
-3
mF
Step 4: Place 1st pole at ESR zero frequency.
C1 :+
C2
C2 @ R2 @ 2 @ p @ F
ESR
* 1
C1 + 1.542 10
-3
mF
Step 5: Place 2
nd
zero at the output filter double pole
frequency.
R3 :+
R1
F
SW
2@F
lc
* 1
R3 + 74.169W
Step 6: Place 2
nd
pole at half the switching frequency.
C3 :+
1
ǒ
p @ R3 @ F
SW
Ǔ
C3 + 0.014mF
Step 7: R4 is sized to maintain the feedback voltage to
V
ref
= 0.8 V.
R4 :+
V
REF
@ R1
V
OUT
* V
REF
R4 + 3.878kW
The Component values for Type III Compensation are:
R1 = 4.12 kW
R2 = 17.085 kW
R3 = 74.169 W
R4 = 3.878 kW
C1 = 0.0015 mF
C2 = 0.007 mF
C3 = 0.014 mF
NOTE: Recommend to change values to industry
standard component values.
NCP1588, NCP1589
http://onsemi.com
11
PACKAGE DIMENSIONS
DFN10, 3x3, 0.5P
CASE 485C-01
ISSUE A
10X
SEATING
PLANE
L
D
E
0.15 C
A
A1
e
D2
E2
b
15
10 6
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED
TERMINAL AND IS MEASURED BETWEEN
0.25 AND 0.30 MM FROM TERMINAL.
4. COPLANARITY APPLIES TO THE EXPOSED
PAD AS WELL AS THE TERMINALS.
5. TERMINAL b MAY HAVE MOLD COMPOUND
MATERIAL ALONG SIDE EDGE. MOLD
FLASHING MAY NOT EXCEED 30 MICRONS
ONTO BOTTOM SURFACE OF TERMINAL b.
6. DETAILS A AND B SHOW OPTIONAL VIEWS
FOR END OF TERMINAL LEAD AT EDGE OF
PACKAGE.
B
A
0.15
C
TOP VIEW
SIDE VIEW
BOTTOM VIEW
PIN 1
REFERENCE
0.10 C
0.08 C
(A3)
C
10X
10X
0.10 C
0.05
C
A B
NOTE 3
K
10X
DIM MIN MAX
MILLIMETERS
A 0.80 1.00
A1 0.00 0.05
A3 0.20 REF
b 0.18 0.30
D 3.00 BSC
D2 2.45 2.55
E 3.00 BSC
E2 1.75 1.85
e 0.50 BSC
L 0.35 0.45
L1 0.00 0.03
DETAIL A
K 0.19 TYP
2X
2X
L1
DETAIL A
Bottom View
(Optional)
A1
A3
DETAIL B
Side View
(Optional)
EDGE OF PACKAGE
MOLD CMPD
EXPOSED Cu
DETAIL B
*For additional information on our Pb-Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
2.1746
2.6016
1.8508
0.5000 PITCH
0.5651
10X
3.3048
0.3008
10X
DIMENSIONS: MILLIMETERS
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to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
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associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
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NCP1588/D
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NCP1588MTR2G

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
IC REG CTRLR BUCK 10DFN
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New from this manufacturer.
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