PT6520 Datasheet, PDF (2/12 Pages) Texas Instruments – 8-A 5-V/3.3-V Input Adjustable ISR with Short-Circuit protection

PT6520 Series
8-A 5-V/3.3-V Input Adjustable ISR
with Short-Circuit protection
Specifications (Unless otherwise stated, T_a =25°C, V_in =5V, C_in =330µF, C_out =330µF, and I_o =I_omax)
PT6520 SERIES
Characteristic
Symbol
Conditions
Min
Typ
Max
Units
Output Current
Input Voltage Range
Set Point Voltage Tolerance
Temperature Variation
Line Regulation
Load Regulation
Total Output Voltage Variation
Efficiency
Vo Ripple (pk-pk)
Transient Response
Short Circuit Threshold
Switching Frequency
Remote On/Off (Pin 1)
Input High Voltage
Input Low Voltage
Input Low Current
Standby Input Current
External Output Capacitance
External Input Capacitance
Operating Temperature Range
Storage Temperature
Reliability
Mechanical Shock
Mechanical Vibration
Mil-Std-883D, 20-2000Hz
Weight
Flammability
Io
Vin
Vo tol
Reg_temp
Regline
Reg_load
∆Votot
η
Vr
ttr
∆Vtr
Isc threshold
ƒs
VIH
VIL
IIL
Iin standby
Cout
Cin
Ta
Ts
MTBF
—
—
—
—
Over Vin range
Over Io Range
Vo =3.3V
V_o ≤2.5V
–40° ≤T_a ≤ +85°C, I_o =I_omin
Over Vin range
Over I_o range
Includes set-point, line, load,
–40° ≤Ta ≤ +85°C
I_o =3.0A
Io =8.0A
20MHz bandwidth
1A/µs load step, 50% to 100% Iomax
Vo over/undershoot
V_o =3.3V
Vo =2.5V
Vo =2.1V
Vo =1.8V
Vo =1.5V
Vo =1.2V
Vo =3.3V
Vo =2.5V
Vo =2.1V
Vo =1.8V
V_o =1.5V
Vo =1.2V
Over Vin and Io range
Referenced to –Vin (pin 7)
pins 3 & 7 connected
See application schematic
See application schematic
Over Vin range
—
Per Bellcore TR-332
50% stress, Ta =40°C, ground benign
Per Mil-Std-883D, method 2002.3,
1ms, half-sine, mounted to a fixture
Suffixes P, D, & E
Suffixes L & M
Suffixes P, D, & E
Suffixes R, G & B
Suffixes L & M
Suffixes Q & F
Materials meet UL 94V-0
0.1 (1)
4.5
3.1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
300
—
–0.1
—
—
330
330
-40
-40
6.3
—
—
—
—
—
—
—
—
8.0
A
—
—
5.5
5.5
VDC
±1
±1.5
%Vo
±0.5
—
%V_o
±5
±10
mV
±5
±10
mV
±2
±3
%Vo
92
—
88
—
85
82
—
—
%
80
—
75
—
89
—
85
—
82
78
—
—
%
75
—
71
—
35
—
mVpp
50
—
µs
±70
—
mV
12
22.5
A
350
400
kHz
—
—
Open (2)
+0.4
V
–0.5
–
mA
15
25
mA
—
5,000
µF
—
—
µF
—
+85 ⁽³⁾
°C
—
+125
°C
—
—
10⁶ Hrs
500
—
G’s
7.5
—
TBD (4) —
12.5
—
16.5
—
15.25
—
22
—
G’s
grams
Notes: (1) The ISR will operate at no load with reduced specifications.
(2) The STBY* control (pin 3) has an internal pull-up and if it is left open circuit the module will operate when input power is applied. The open-circuit
voltage is typically 12.6V, and maybe as high as 15V. Refer to the application notes for other interface considerations.
(3) See Safe Operating Area curves or contact the factory for the appropriate derating.
(4) The tab pins on the 16-pin mount package types (suffixes L & M) must be soldered. For more information see the applicable package outline drawing.
Input/Output Capacitors: The PT6520 series requires a 330µF capacitor at both the input and output for proper operation in all applications. In addition, the input
capacitance (C_in) must be rated for a minimum of 1.2Arms ripple current rating. For transient or dynamic load applications, additional output capacitance (C_out) may be
necessary. The maximum allowable output capacitance is 5,000µF. For more information consult the related application note on capacitor recommendations.
For technical support and more information, see inside back cover or visit www.ti.com