
Analog Integrated Circuit Device Data
Freescale Semiconductor
85
PC34708
Functional Block Requirements and Behaviors
LDO Regulators Description and Application Information
application. The recommended PNP device is the ON Semiconductor NSS12100XV6T1G, which is capable of handling up to
250 mW of continuous dissipation at minimum footprint and 75 °C of ambient. For use cases where up to 500 mW of dissipation
is required, the recommended PNP device is ON Semiconductor NSS12100UW3TCG. For stability reasons, a small minimum
ESR may be required.
A short-circuit condition will shut down the VDAC regulator and generate an interrupt for SCPI.
The nominal output voltage of this regulator is SPI configurable, and can be 2.5 V, 2.6 V, 2.7 V, or 2.775 V. The maximum output
current along with an external PNP, is 250 mA.
Table 83. VDAC Voltage Control
Parameter
Value
Output Voltage
ILoad max
VDAC
00
2.500 V
250 mA
01
2.600 V
250 mA
10
2.700 V
250 mA
11
2.775 V
250 mA
Table 84. VDAC Electrical Specification
Characteristics noted under conditions BP = 3.6 V, VBUS = 5.0 V, -40°C ≤ TA ≤ 85°C, unless otherwise noted. Typical values at
BP = 3.6 V and TA = 25°C under nominal conditions, unless otherwise noted.
Symbol
Characteristic
Min
Typ
Max
Unit
Notes
GENERAL
VDACIN
Operating Input Voltage Range VINMIN to VINMAX
VNOM +
0.25
-
4.5
V
IDAC
Operating Current Load Range ILMIN to ILMAX
Not exceeding PNP max power
0
-
250
mA
VDACIN
Extended Input Voltage Range
Performance may be out of specification
UVDET
-
4.5
V
VDAC ACTIVE MODE – DC
VDAC
Output Voltage VOUT
VINMIN < VIN < VINMAX ILMIN < IL < ILMAX
VNOM – 3%
VNOM
VNOM + 3%
V
VDACLOPP Load Regulation
1.0 mA < IL < ILMAX For any VINMIN < VIN < VINMAX
-
0.20
-
mV/mA
VDACLIPP
Line Regulation
VINMIN < VIN < VINMAX For any ILMIN < IL < ILMAX
-
5.0
-
mV
VDACSCTH Short-circuit Protection threshold
VINMIN < VIN < VINMAX Short-circuit VOUT to GND
ILMAX+20
%
-
mA
IDACQ
Active Mode Quiescent Current
VINMIN < VIN < VINMAX IL = 0
-
30
-
A
VDAC LOW POWER MODE – DC - VDACMODE=1
VDAC
Output Voltage VOUT
VINMIN < VIN < VINMAX ILMINLP < IL < ILMAXLP
VNOM – 3%
VNOM
VNOM + 3%
V
IDAC
Current Load Range ILMINLP to ILMAXLP
0
-
3.0
mA
IDACQ
Low Power Mode Quiescent Current
VINMIN < VIN < VINMAX IL = 0
-
8.0
-
A