Voltage Regulators
1
AN8013SH
Single-channel step-up or step-down
DC-DC converter control IC
n Overview
The AN8013SH is a single-channel PWM DC-DC
converter control IC. This IC implements DC-DC con-
verters that provide a single arbitrary output voltage that
is either a stepped-up or stepped-down level. It features a
wide operating supply voltage range, low power, and a
built-in overcurrent protection circuit to protect the
switching transistor from damage or destruction. The
AN8013SH is provided in a 0.5 mm pitch 10-pin surface
mounting package and is optimal for use in miniature
high-efficiency portable power supplies.
n Features
• Wide operating supply voltage range (3.6 V to 34 V)
• Small consumption current (2.4 mA typical)
• Supports control over a wide output frequency range:
20 kHz to 500 kHz.
• Built-in pulse-by-pulse overcurrent protection circuit
(Detection voltage: V
CC
- 100 mV)
• Built-in timer latch short-circuit protection circuit
(charge current 1.3 m A typical)
• Incorporating the under-voltage lock-out (U.V.L.O.) circuit
• Built-in reference voltage circuit (Error amplifier reference input: 0.75 V (allowance: – 4%))
• Output block is open-collector (darlington) type.
• High absolute maximum rating of output current (100 mA)
• Duty ratio with small sample-to-sample variations (55% – 5%).
• Adopts a 0.5-mm lead pitch 10-pin small outline package
n Applications
• Switching mode power supply units (in portable equipment and other applications)
SSOP010-P-0225
Unit: mm
4.3– 0.30
6.3– 0.30
0.5– 0.2
0.1
–
0.1
1
5
10
6
0.2
–
0.1
0.5
3.0
–
0.30
1.5
–
0.2
0.625
–
0.10
0.625
–
0.10
0.15
+0.1
–0.05
n Pin Descriptions
1
2
3
4
5
10
9
8
7
6
CLM
RT
CT
S.C.P.
DTC
V
CC
Out
GND
IN-
FB