TYPICAL APPLICATIONS
OPERATIONAL MODES
TYPICAL APPLICATIONS
Optional
Protection FET
V
= 5.0V
DDH
@ 2000mA total
3.3uH
100uF
22uH
Battery
VBAT
SW
SW
FREQ
Feed
Forward
Ramp
UVLO
/OVLO
10nF
VBAT
100uF
1.0uF
SS26
Oscillator
Buck
HS Drive,
Level
Shifter
CP
BOOT
SR
KA_VBAT
Generator
R
Fre q
Control Logic
10nF
1.0uF
VKAM
1.0 V
10nF
VKAM
15 mA,I
,
Lim
Feedback Compens ation Network
1. 5nF 430R
T
Lim
4. 7uF
CP
PFD
20k
INV
CP
Protection
FE T
Drive
5. 0k
20k
56pF
V
BG
RE GON
2.2nF
Charge
Pump
VCOMP
5. 1k
VIGN
VDDH
Enable
T-lim
IGN_ON
10nF
100nF
VDD3
Q2
VDD3_B
VDD3
I
,T
VREF1
Lim Lim
5.0 V
5.0 V,
I
=150 mA
Lim
1.5R
Standby
Control
3.3 V
VDD3_SBY
26.5V,-1V,T
Lim
I
,T
Lim Lim
1.0uF
5. 0 V,
4.7uF
10nF
5.0 V
VREF2
P1
Band-Gap
Reference
V
I
=150 mA
BG
Lim
26.5V,-1V,T
VDDL_B
VDDL
VDDL
Q1
1.5 V
Lim
1. 5R
I
V
, V
, V
,
Lim
1.0uF
KAM DDL DD3
Ref. Voltage
Programming
Block
V
DD3_SBY
P2
P3
Ref. Voltage
10uF
10nF
4 x 5.1k
V
KAM
RSTKAM
Reset Detect
HRT
R
HR Timer
RS TH
RST3
RSTL
V
DDH
HRT
Recommended Q1, Q2:
BCP68T1 (SOT-223)
NJD2873T4 (DPAK)
MJB44H11 (D2PAK)
Reset Detect
V
DD3
GND
Reset Detect
V
DDL
Reset Detect
Notes
11. The V
total current includes the sum of all output currents of the IC.
DDH
Figure 8. 33730 Typical Application Circuit
Programming Output Voltage (BOLD denotes selected combinations)
P1
P2
P3
V
V
V
KAM
DD3
DDL
High
High
High
High
Low
Low
Low
Low
High
High
Low
Low
High
High
Low
Low
High
Low
High
Low
High
Low
High
Low
3.3V
3.3V
2.6V
3.3V
1.5V
3.3V
3.3V
3.15V
3.3V
3.3V
2.6V
3.3V
1.0V
1.0V
1.0V
5.0V
1.0V
1.5V
3.3V
3.3V
3.3V Standby
2.0
2.6V Standby
2.6V Standby
33730
Analog Integrated Circuit Device Data
Freescale Semiconductor
21
FREESCALE [ Freescale ]
