PT6300 Datasheet, PDF (1/8 Pages) Texas Instruments – 3 AMP ADJUSTABLE POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATORS

PT6300 Series
3 Amp Adjustable Positive Step-down
Integrated Sw itching Regulators
SLTS031B
(Revised 9/30/2000)
• 90% Efficiency
• Adjustable Output Voltage
• Internal Short Circuit Protection
• Over-Temperature Protection
• On/Off Control (Ground Off)
• Small SIP Footprint
• Wide Input Range
The PT6300 Series is a line of
High-Performance 3 Amp, 12-Pin SIP
(Single In-line Package) Integrated
Switching Regulators (ISRs) designed
to meet the on-board power conversion
needs of battery powered or other
equipment requiring high efficiency and
small size. This high performance ISR
family offers a unique combination of
features combining 90% typical effi-
ciency with open-collector on/off
control and adjustable output voltage.
Quiescent current in the shutdown
mode is typically less than 100µA.
Standard Application
V_OADJ
12
V_IN
2,3,4
PT6300
9,10,11
V_OUT
1
C1
INH
COM
5,6,7,8
+
C2
Q1
COM
C₁ = Optional 1µF ceramic
C₂ = Required 100µF electrolytic (1)
Q₁ = NFET
Specifications
Pin-Out Information
Pin Function
1
Inhibit
(30V max)
2
Vin
3
Vin
4
Vin
5 GND
6 GND
7 GND
8 GND
9
Vout
10 Vout
11 Vout
12 Vout Adj ⁽⁵⁾
Ordering Information
PT6302¨ = +5 Volts
PT6303¨ = +3.3 Volts
PT6304¨ = +12 Volts
PT6314¨ = +1.5Volts
Pkg Style 200
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
Characteristics
(T_a=25°C unless noted)
Output Current
Short Circuit Current
Input Voltage Range
(Note: inhibit function cannot
be used above 30V.)
Output Voltage Tolerance
Line Regulation
Load Regulation
Vo Ripple/Noise
Transient Response
with Co = 100µF
Efficiency
Symbols
Io
I_sc
Vin
∆Vo
Regline
Reg_load
V_n
t_tr
Vos
η
Switching Frequency
ƒ_o
Shutdown Current
I_sc
Quiescent Current
I_nl
Absolute Maximum
T_a
Operating Temperature Range
Thermal Resistance
θ_ja
Storage Temperature
T_s
Mechanical Shock
Mechanical Vibration
Weight
—
Conditions
Over Vin range
V_in = V_o + 5V
0.1 ≤ Io ≤ 3.0 A
Over Vin Range, Io = 3.0 A
T_a = 0°C to +60°C
Over Vin range
0.1 ≤ I_o ≤ 3.0 A
Vin = Vin min, Io = 3.0 A
50% load change
Vo over/undershoot
Vin=16V, Io = 0.5 A,
V_in=9V, I_o = 0.5 A,
V_in=9V, I_o = 0.5 A,
Vin=9V, Io =0.5A,
Over Vin and Io ranges,
Vin = 15V
I_o = 0A, V_in =10V
Over V_in range
Vo = 12V
Vo = 5.0V
Vo = 3.3V
V_o = 1.5V
Vo = 12V
V_o = 5.0V
V_o = 3.3V
Vo = 1.5V
Vo = 12V
V_o = 3.3V/5V
V_o = 1.5V
Min
0.1 ⁽²⁾
—
16
9
9
9.0
PT6300 SERIES
Typ
Max
—
3.0
5.0
—
—
30/38 ⁽³⁾
—
30/38 (3)
—
26
—
17
Units
A
Apk
V
—
±1.0
±2.0
%Vo
—
±0.25
±0.5
%Vo
—
±0.25
±0.5
%V_o
—
±2
—
%Vo
—
100
200
µSec
—
5.0
—
%Vo
—
91
—
—
—
89
84
—
—
%
—
72
—
600
750
900
400
500
600
kHz
350
450
550
—
100
—
µA
—
10
—
mA
-40
—
+85 (4)
°C
Free Air Convection (40-60LFM)
—
30
—
°C/W
—
-40
—
+125
°C
Per Mil-STD-883D, Method 2002.3, 1 msec,
Half Sine, mounted to a fixture
—
500
—
G’s
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz,Soldered in a PC board
—
10
—
G’s
—
—
6.5
—
grams
Notes: (1) The PT6300 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.
(2) The ISR will operate to no load with reduced specifications.
(3) Input voltage cannot exceed 30V when the inhibit function is used.
(4) See Thermal Derating charts.
(5) Consult the related application note for guidance on adjusting the output voltage.
For technical support and more information, see inside back cover or visit www.ti.com/powertrends