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PI3420-00 Schematic ( PDF Datasheet ) - Vicor

Teilenummer PI3420-00
Beschreibung 15 A Cool-Power ZVS Buck Regulator
Hersteller Vicor
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Gesamt 30 Seiten
PI3420-00 Datasheet, Funktion
Cool-Power®
PI34xx-00
8 V to 18 Vin, 15 A Cool-Power ZVS Buck Regulator
Product Description
The PI34xx-00 is a family of high efficiency DC-DC ZVS-Buck
regulators integrating the controller, power switches and
support components within a high density
System-in-Package (SiP).
The PI34xx-00 is designed to achieve optimum efficiency at
low input voltage ranges (8 V to 18 V). The utilization of zero
current soft turn-on provided by the high performance ZVS
topology within the PI34xx-00 series increases point of load
performance, providing best in class power efficiency with
high throughput power.
The PI34xx-00 requires only an external inductor and
minimal capacitors to form a complete DC-DC switching
mode buck regulator.
Device
PI3420-00-LGIZ
PI3421-00-LGIZ
PI3422-00-LGIZ
PI3423-00-LGIZ
PI3424-00-LGIZ
Output Voltage
Set Range
1.0 V
1.0 V to 1.4 V
1.8 V
1.4 V to 2.0 V
2.5 V
2.0 V to 3.1 V
3.3 V
2.3 V to 4.1 V
5.0 V
3.3 V to 6.5 V
IOUT Max
15 A
15 A
15 A
15 A
15 A
The ZVS architecture enables high frequency operation while
minimizing switching losses and maximizing efficiency. The
high switching frequency operation reduces the size of the
external filtering components, improves power density, and
enables very fast dynamic response to line and load
transients.
The ZVS architecture enables operation up to 750 kHz while
minimizing switching losses and the use of variable frequency
extends high efficiency over a very wide dynamic range. The
PI34xx-00 series has a minimum on time of 20ns which
enables large step down conversion ratios.
Features & Benefits
High Efficiency ZVS-Buck Topology
Input voltage range of 8 V to 18 V
Very-Fast transient response
Power-up into pre-biased load
High accuracy pre-trimmed output voltage
User adjustable soft-start & tracking
Parallel capable with single wire current sharing
Input Over/Undervoltage Lockout (OVLO/UVLO)
Output Overvoltage Protection (OVP)
Overtemperature Protection (OTP)
Fast and slow current limits
-40°C to 125°C operating range (TJ)
Applications
High efficiency systems
Computing, Communications, Industrial,
Automotive Equipment
Package Information
10 mm x 14 mm x 2.6 mm LGA SiP
Cool-Power®
Page 1 of 30
Rev 1.3
12/2015
vicorpower.com
800 927.9474






PI3420-00 Datasheet, Funktion
PI34xx-00
PI3420-00-LGIZ (1.0 VOUT) Electrical Characteristics
Specifications apply for -40°C < TJ < 125°C, VIN =12 V, L1 = 85 nH (Note 1) unless other conditions are noted.
Parameter
Symbol
Conditions
Input Voltage
Input Current
Input Current At Output Short
(fault condition duty cycle)
Input Quiescent Current
Input Voltage Slew Rate
VIN_DC
IIN_DC
IIN_Short
IQ_VIN
VIN_SR
Input Specifications
Minimum 1 mA load required
VIN = 12 V, TC = 25°C, IOUT = 15 A
Note [2]
Disabled
Enabled (no load)
Note [2]
Output Voltage Total Regulation
Output Voltage Trim Range
Line Regulation
Load Regulation
Output Voltage Ripple
Continuous Output Current Range
Current Limit
Output Specifications
VOUT_DC Note [2]
VOUT_DC Note [3]
VOUT(VIN) @25°C, 8 V <VIN <18 V
VOUT(IOUT) @25°C, 0.5 A <IOUT <15 A
VOUT_AC IOUT = 7.5 A, COUT = 8 x100µF, 20 MHz BW, Note [4]
IOUT_DC
IOUT_CL
Min Typ Max Unit
8 12 18 V
1.437
A
10 mA
2.6
mA
4
1 V/µs
0.987 1.0 1.013 V
1.0 1.4 V
0.10 %
0.20 %
27 mVp-p
0.001
15 A
18 A
UVLO Start Threshold
UVLO Stop Hysteresis
UVLO Stop Threshold
OVLO Start Hysteresis
UVLO/OVLO Fault Delay Time
UVLO/OVLO Response Time
Output Overvoltage Protection
Over-Temperature Fault Threshold
Over-Temperature Restart Hysteresis
VUVLO_START
VUVLO_HYS
VOVLO
VOVLO_HYS
tf_DLY
tf
VOVP
TOTP
TOTP_HYS
Protection
Number of the switching frequency cycles
+1% overdrive
Above Set VOUT
7.20
4
19.71
1.56
130
7.60
5
20.75
1.83
128
500
20
135
30
8.00
6
21.78
2.1
140
V
V
V
V
Cycles
ns
%
°C
°C
[1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI34xx-00 evaluation board with 3 x 4”
dimensions and 4 layer, 2oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value.
[2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control.
[3] Output current capability may be limited and other performance may vary from noted electrical characteristics when switching frequency or
VOUT is modified.
[4] Refer to Output Ripple plots.
[5] Refer to Load Current vs. Ambient Temperature curves.
[6] Refer to Switching Frequency vs. Load current curves.
Cool-Power®
Page 6 of 30
Rev 1.3
12/2015
vicorpower.com
800 927.9474

6 Page









PI3420-00 pdf, datenblatt
PI34xx-00
PI3422-00-LGIZ (2.5 VOUT) Electrical Characteristics
Specifications apply for -40°C < TJ < 125°C, VIN =12 V, L1 = 125 nH (Note 1) unless other conditions are noted.
Parameter
Symbol
Conditions
Min Typ Max Unit
Input Voltage
Input Current
Input Current At Output Short
(fault condition duty cycle)
Input Quiescent Current
Input Voltage Slew Rate
VIN_DC
IIN_DC
IIN_Short
IQ_VIN
VIN_SR
Input Specifications
Minimum 1 mA load required
VIN = 12 V, TC = 25°C, IOUT = 15 A
Note [2]
Disabled
Enabled (no load)
Note [2]
8 12 18 V
3.37 A
10 mA
2.6
mA
4.0
1 V/µs
Output Voltage Total Regulation
Output Voltage Trim Range
Line Regulation
Load Regulation
Output Voltage Ripple
Continuous Output Current Range
Current Limit
Output Specifications
VOUT_DC Note [2]
VOUT_DC Note [3]
VOUT(VIN) @25°C, 8 V <VIN <18 V
VOUT(IOUT) @25°C, 0.5 A <IOUT <15 A
VOUT_AC IOUT = 7.5 A, COUT = 8 x100µF, 20 MHz BW, Note [4]
IOUT_DC
IOUT_CL
2.465
2.5
2.535
V
2.0 2.5 3.1 V
0.10 %
0.20 %
14 mVp-p
15 A
18 A
UVLO Start Threshold
UVLO Stop Hysteresis
UVLO Stop Threshold
OVLO Start Hysteresis
UVLO/OVLO Fault Delay Time
UVLO/OVLO Response Time
Output Overvoltage Protection
Over-Temperature Fault Threshold
Over-Temperature Restart Hysteresis
VUVLO_START
VUVLO_HYS
VOVLO
VOVLO_HYS
tf_DLY
tf
VOVP
TOTP
TOTP_HYS
Protection
Number of the switching frequency cycles
+1% overdrive
Above Set VOUT
7.20
4
19.71
1.56
130
7.60
5
20.75
1.83
128
500
20
135
30
8.00
6
21.78
2.1
140
V
V
V
V
Cycles
ns
%
°C
°C
[1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI34xx-00 evaluation board with 3 x 4”
dimensions and 4 layer, 2oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value.
[2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control.
[3] Output current capability may be limited and other performance may vary from noted electrical characteristics when switching frequency or
VOUT is modified.
[4] Refer to Output Ripple plots.
[5] Refer to Load Current vs. Ambient Temperature curves.
[6] Refer to Switching Frequency vs. Load current curves.
[7] Minimum 5 V between Vin-Vout must be maintained or a minimum load of 1 mA required.
Cool-Power®
Page 12 of 30
Rev 1.3
12/2015
vicorpower.com
800 927.9474

12 Page





SeitenGesamt 30 Seiten
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