SP34063A Datasheet, PDF (2/9 Pages) Sipex Corporation – 1.5A Buck/Boost/Inverting DC-DC Switching Regulator

SP34063A
1.5A Buck/Boost/Inverting DC-DC Regulator
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
Power Supply Voltage V_CC ........................................ 40V
Comparator Input Voltage ........................... -0.3V to 40V
Switch Collector Voltage .......................................... 40V
Switch Emitter Voltage (V_PIN1=40V)........................... 40V
Switch Collector to Emitter Voltage ........................... 40V
Driver Collector Voltage........................................... 40V
Driver Collector Current (Note 2).......................... 100mA
Switch Current ...................................................... 1.5A
Storage Temperature .............................. -65°C to 150°C
ESD Rating (HBM - Human Body Model) .................... 2kV
OPERATING RATINGS
Input Voltage Range V_IN................................3.0V to 36V
Power Dissipation (T_A=25°C - NSOIC) ..................780mW
Junction Temperature Range ....................-40°C to 150°C
Thermal Resistance θ_JA .....................................160°C/W
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Temperature of T_A = 25°C only. Minimum and Maximum limits are
guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at T_A =
25°C, and are provided for reference purposes only. Unless otherwise indicated, V_CC = 5.0V, T_A= –40°C to 85°C.
Parameter
Oscillator
Min.
Typ.
Max.
Units
Conditions
Frequency F_OSC
30
38
45
KHz
V_PIN5 = 0V, CT = 1.0nF, T_A = 25°C
Charge Current I_CHG
30
38
45
µA
V_CC = 5.0V to 36V, T_A = 25°C
Discharge Current I_DISCHG
180
240
290
µA
V_CC = 5.0V to 36V, T_A = 25°C
Discharge to Charge Current
Ration I_DISCHG/I_CHG
Current Limit Sense Voltage
V_IPK(sense)
Output Switch (Note 1)
Saturation Voltage,
Darlington Connection V_CE(sat)
Saturation Voltage (note 2)
DC Current Gain
Collector Off-State Current
Comparator
Threshold Voltage V_TH
Threshold Voltage Line
Regulation R_EGLINE
Input Bias Current I_IB
Total Device
Supply Current I_CC
5.2
6.5
7.5
250
300
350
mV
1.0
1.3
V
0.45
0.7
V
50
75
0.01
100
µA
1.225 1.250 1.275
V
1.210 1.250 1.290
V
1.4
5
mV
-20
-400
nA
4
mA
Pin 7 to V_CC, T_A = 25°C
I_DISCHG = I_CHG, T_A = 25°C
I_SW=1A, pin1,8 connected
I_SW=1A, R pin8 = 82ohms to V_CC,
forced ß=20
I_SW=1A, V_CE = 5V, T_A = 25°C
V_CE=36V
T_A = 25°C
T_A = -40°C to 85°C
V_CC = 3.0V to 36V
V_IN= 0V
V_CC=5.0V to 36V, CT=1nF, pin 7 = V_CC
Vpin5 >V_TH
Note 1: Low duty cycle pulse techniques are used during the test program to maintain junction temperature as close to
ambient temperature as possible.
Note 2: If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (≤ 300mA)
and high driver currents (≥ 30mA), it may take up to 2.0μs for it to come out of saturation. This condition will shorten the
© 2011 Exar Corporation
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Rev. 2.1.0