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PT5810 Series
20-A 3.3-V Input Adjustable
Integrated Switching Regulator
Specifications (Unless otherwise stated, Ta =25 °C, Vin =3.3 V, Vout =1.8 V, Cin =1,000 F, Cout =330 F, and Io =Iomax)
PT5810 SERIES
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
0—
20
A
Input Voltage Range
Vin
Over Io range
2.95 (1)
—
3.65
V
Set-Point Voltage Tolerance
Vo tol
—
±2
%Vo
Temperature Variation
Regtemp
–40°C <Ta < +85 °C
—
±0.5
—
%Vo
Line Regulation
Regline
Over Vin range
—
±4
—
mV
Load Regulation
Regload
Over Io range
—
±2
—
mV
Total Output Variation
Regtot
Includes set-point, line, load,
——±3
%Vo
–40°C
≤ Ta ≤ +85 °C
Efficiency
η
Io =12 A
PT5812 (2.5 V)
—
93
—
PT5813 (1.8 V)
—
90
—
%
PT5814 (1.5 V)
—
89
—
PT5815 (1.2 V)
—
87
—
PT5816 (1.0 V)
—
84
—
Vo Ripple (pk-pk)
Vr
20 MHz bandwidth
—
20
—
mVpp
Transient Response
1 A/s load step, 50 to 100 % Iomax,
ttr
Recovery Time
—
50
—
Sec
Vtr
Vo over/undershoot
—
120
—
mV
Over-Current Threshold
ITRIP
Reset, followed by auto-recovery
—
30
—
A
Output Voltage Adjust
Vo adj
With Vo Adjust
—
±15 (2)
—
%
With Margin Up/Dn
—
±5
—
Switching Frequency
s
Over Vin and Io ranges
250
300
350
kHz
Inhibit Control (pin 2)
Referenced to GND (pins 9–13)
Input High Voltage
VIH
Vin –0.5
—
Open (3)
V
Input Low Voltage
VIL
–0.2
—
0.6
Input Low Current
IIL
Pin 2 to GND
—
–0.2
—
mA
Standby Input Current
Iin standby
Pin 2 to GND
—
5
—
mA
External Input Capacitance
Cin
1,000 (4)
——F
External Output Capacitance
Cout
330
(5)
—
5,000
F
Operating Temperature Range
Ta
Over Vin range
–40
(5)
—
+85 (6)
°C
Over-Temperature Protection
OTP
Measured at center of case, auto-reset
—
110
—
°C
Solder Reflow Temperature
Treflow
Surface temprature of module pins or case
—
215 (7)
°C
Storage Temperature
Ts
—
-40
—
+125
°C
Reliability
MTBF
Per Bellcore TR-332
5.8
—
106 Hrs
50% stress, Ta =40°C, ground benign
Mechanical Shock
Mil-STD-883D, Method 2002.3
—
500
—
G’s
Half Sine, mounted to a fixture
Mechanical Vibration
Mil-STD-883D, Method 2007.2,
—
20 (8)
—G’s
20-2000 Hz, PCB mounted
Weight
—
20
—
grams
Flammability
—
Materials meet UL 94V-0
Notes: (1) The minimum input voltage is equal to 2.95 V or Vout + 0.75 V, whichever is greater.
(2) This is a typical value. For the adjustment limits of a specific model consult the related application note on output voltage adjustment.
(3) The Inhibit control (pin 2) has an internal pull-upto Vin, and if left open-circuit the module will operate when input power is applied. A small low-
leakage (<100nA) MOSFET is recommended to control this input. See application notes for more information.
(4) A 1,000 F electrolytic input capacitor is required for proper operation. This capacitor must be rated for a minimumm of 0.7 Arms of ripple current.
(5) For operation below 0 °C, COUT must have stable characteristics. Use either low-ESR tantalum or Oscon type capacitors.
(6) See SOA curves or consult factory for the appropriate derating.
(7) During solder reflow of SMD package version do not elevate the module case, pins, or internal component temperatures above a peak of 215 °C. For
further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products,” (SLTA051)
(8) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.
SLTS174A - JANUARY 2003 - REVISED APRIL 2003