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零件编号 | PI3311-00-LGIZ | ||
描述 | 8V to 36Vin Cool-Power ZVS Buck Regulator | ||
制造商 | Picor | ||
LOGO | |||
1 Page
PI33XX‐X0‐LGIZ
Cool‐Power®
8V to 36Vin Cool‐Power® ZVS Buck Regulator Family
Description
The PI33XX is a family of high efficiency, wide input
range DC‐DC ZVS‐Buck regulators integrating
controller, power switches, and support components
all within a high density System‐in‐Package (SiP). The
integration of a high performance Zero‐Voltage
Switching (ZVS) topology, within the PI33XX series,
increases point of load performance providing best in
class power efficiency. The PI33XX requires only an
external inductor and minimal capacitors to form a
complete DC‐DC switching mode buck regulator.
Device
Output Voltage
Set Range
Iout Max
PI3311‐X0‐LGIZ 1.0V 1.00 to 1.4
10A
PI3312‐X0‐LGIZ 2.5V 2.0 to 3.1
10A
PI3301‐X0‐LGIZ 3.3V 2.3 to 4.1
10A
PI3302‐X0‐LGIZ 5.0V 3.3 to 6.5
10A
PI3303‐X0‐LGIZ 12V 6.5 to 13.0
8A
PI3305‐X0‐LGIZ 15V 10.0 to 16.0
8A
Table 1 ‐ PI33XX Portfolio. Additional versions available for
higher 18A current, output voltages (Vout) of 1.5 to 1.9V,
and Vout >15.
Features
High efficiency up to 98%
ZVS‐Buck Topology
Wide input voltage range of 8V to 36V
Very‐Fast transient response
High accuracy pre‐trimmed output voltage
User adjustable soft‐start & tracking
Power‐up into pre‐biased load (select versions)
Parallel capable with single wire current sharing
Input Over/Under Voltage Lockout (OVLO/UVLO)
Output Overvoltage Protection (OVP)
Over Temperature Protection (OTP)
Fast and slow current limits
‐40°C to 125°C operating range (TJ)
Optional I2C functionality & programmability:
Vout margining
Fault reporting
Enable and SYNCI pin polarity
Phase delay (for interleaving multiple
regulators)
Applications
High efficiency systems
Computing, Communications, Industrial,
Automotive Equipment
High voltage battery operation
The Zero Voltage Switching (ZVS) architecture also
enables high frequency operation while minimizing
Package Information
10mm x 14mm x 2.6mm LGA SiP
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 PI33XX series sustains
high switching frequency all the way up to the rated
input voltage without sacrificing efficiency and, with
its 20ns minimum on‐time, supports large step down
conversions up to 36Vin.
Picor Corporation • picorpower.com PI33XX‐X0‐LGIZ Family Datasheet Rev 1.2 August 24, 2012
I2C is a trademark of NXP Semiconductors
Page 1 of 39
PI3311‐X0 Typical Characteristics
Efficiency at 25°C
100
95
90
85
80
75
70
65 12Vin
60 24Vin
55 36Vin
50
0 1 2 3 4 5 6 7 8 9 10
Iout [A]
331101
Ambient Temperature vs. Load Current Curve
Total Power Loss (including external components)
2
1.5
1
0.5 12Vin
24Vin
0
0 1 2 3 4 5 6 7 8 9 10
Iout [A]
331102
Transient Response: 24V to 1.0V
12
10
8
6
4 8V
24V
2 36V
0
75 85 95 105 115 125
Ambient Temperature [⁰C]
0 LFM, SiP Only 331103
Switching frequency vs load current
550
500
450
400
350
300
250
200 12Vin
150 24Vin
100 36Vin
50
0
1 2 3 4 5 6 7 8 9 10
LOAD [A]
L1 = 120nH
331105
Load Step: 2A to 7A at 5A/us 331104
Cout = 8X 100 µF Ceramic
Output ripple: Vin =24V, Vout = 1.0V at 10A
Vout = 50mV/Div 331106
2.0us/Div
Cout = 8X 100 µF Ceramic
Picor Corporation • picorpower.com PI33XX‐X0‐LGIZ Family Datasheet Rev 1.2 August 24, 2012
Page 8 of 39
PI3301‐X0 Typical Characteristic
Efficiency at 25°C
100%
95%
90%
85%
80%
75%
70%
65%
12V
24V
60% 36V
55%
50%
0 1 2 3 4 5 6 7 8 9 10
LOAD [A]
L1=200nH 330101
Ambient Temperature vs. Load Current Curve
12
10
Total Power Loss (including external components)
4.00
12V
3.00 24V
36V
2.00
1.00
0.00
0 1 2 3 4 5 6 7 8 9 10
LOAD (A)
330102
Transient Response: 24V to 3.3V
8
6
8V
4 24V
2 36V
0
75 85 95 105 115 125
Ambient Temperature [°C]
0 LFM, SiP Package Only 330103
Switching frequency vs. load current
700
600
500
400
300
12V
200 24V
100 36V
0
1 2 3 4 5 6 7 8 9 10
Load (A)
L1 = 200nH 330105
Load Step: 2A to 7A 330104
Cout = 4 x 100µF Ceramic
Output ripple: Vin = 24V, Vout = 3.3V at 10A
Vout = 50mV/Div 330106
2.0us/Div
Cout = 4 x 100µF Ceramic
Picor Corporation • picorpower.com PI33XX‐X0‐LGIZ Family Datasheet Rev 1.2 August 24, 2012
Page 16 of 39
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页数 | 30 页 | ||
下载 | [ PI3311-00-LGIZ.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
PI3311-00-LGIZ | 8V to 36Vin Cool-Power ZVS Buck Regulator | Picor |
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