Datasheet

Electrical characteristics PM6641
10/47 Doc ID 13510 Rev 3
4 Electrical characteristics
T
A
= 0 °C to 85 °C, AVCC = 5 V, VCC = 5 V, VIN_x = 3.3 V and LDOIN connected to 1.8 V
output if not otherwise specified
(a)
.
a. All parameters at operating temperature extremes are guaranteed by design and statistical analysis
(not production tested).
Table 6. Electrical characteristics
Symbol Parameter Test condition
Values
Unit
Min Typ Max
Supply section all rails
I
CC
AVCC+VCC operating current
V
VCC
= +5 V, all switching
regulators active without load
3mA
I
SHDN
Total shutdown current into
VIN_x + AVCC + VCC pins
V
IN
= V
AVCC
= V
VCC
= +5 V,
all EN_x low
10 μA
UVLO
th
AVCC under voltage lockout
upper threshold
4.0 4.1 4.35
V
AVCC under voltage lockout
lower threshold
3.6 3.9 4.0
UVLO hysteresis 100 mV
Error amplifier, FB
AND SS – all rails
V
REF
Error amplifier reference voltage V
AVCC
= V
VCC
= 5 V 792 800 808 mV
I
FB
FB input bias current VFB_X = 0.8 V 25 nA
I
SS
Soft-start current VSS_X = 0.4 V 10 μA
Oscillator frequency
f
SW
Switching frequency
R
SETSWF
= 140 kΩ 500
kHzSET_SWF to VCC 675 750 825
R
SETSWF
= 70 kΩ 1000
Comp all rails
g
m
COMP_x transconductance 300 µS
UVP/OVP protections and PGOOD signal (SMPS only) all rails
OVP
th
Overvoltage threshold 116 120 124
%
UVP
th
Undervoltage threshold 56 60 64
PG
th
Power good upper threshold 106 110 115
Power Good lower threshold 86 90 94
I
PG,LEAK
PG_x outputs leakeage current PG_x tied to +5 V 1 µA
V
PG,LOW
PG_x outputs low level V
FB_X
= 0.6 V or 1V, I
PG_X
= 2 mA 250 mV